| 467 | Humans |
| 370 | Pandemics |
| 310 | Betacoronavirus |
| 221 | Coronavirus Infections (epidemiology) |
| 218 | Pneumonia, Viral (epidemiology) |
| 203 | Coronavirus Infections (psychology) |
| 202 | Pneumonia, Viral (psychology) |
| 106 | Adult |
| 101 | Mental Health |
| 101 | Female |
| 94 | Pneumonia, Viral |
| 93 | Male |
| 92 | Coronavirus Infections |
| 75 | Pandemics (prevention & control) |
| 74 | Coronavirus Infections (prevention & control) |
| 72 | Pneumonia, Viral (prevention & control) |
| 49 | Middle Aged |
| 46 | Health Personnel (psychology) |
| 45 | Mental Health Services |
| 45 | Aged |
| 42 | Coronavirus Infections (complications) |
| 41 | Pneumonia, Viral (complications) |
| 39 | Adolescent |
| 38 | Surveys and Questionnaires |
| 38 | Disease Outbreaks |
| 37 | Young Adult |
| 36 | Risk Factors |
| 36 | Mental Disorders (therapy) |
| 36 | Child |
| 33 | Coronavirus |
| 33 | China (epidemiology) |
| 32 | Pneumonia, Viral (therapy) |
| 32 | Mental Disorders (epidemiology) |
| 32 | Coronavirus Infections (therapy) |
| 29 | Cross-Sectional Studies |
| 28 | Telemedicine |
| 28 | China |
| 26 | Anxiety (epidemiology) |
| 25 | Quarantine (psychology) |
| 25 | Coronavirus Infections (drug therapy) |
| 22 | Depression (epidemiology) |
| 22 | Adaptation, Psychological |
| 21 | Betacoronavirus (pathogenicity) |
| 21 | Anxiety (psychology) |
| 20 | Stress, Psychological |
| 20 | Pneumonia, Viral (transmission) |
| 20 | Pneumonia, Viral (drug therapy) |
| 20 | Coronavirus Infections (transmission) |
| 19 | Mental Health Services (organization & administration) |
| 19 | Health Services Accessibility |
| 19 | Betacoronavirus (isolation & purification) |
| 19 | Aged, 80 and over |
| 18 | Social Isolation |
| 18 | Public Health |
| 18 | Mental Disorders (psychology) |
| 18 | Depression (psychology) |
| 17 | Psychiatry |
| 17 | Coronavirus Infections (diagnosis) |
| 17 | Comorbidity |
| 16 | Stress, Psychological (etiology) |
| 16 | Psychological Distress |
| 16 | Pneumonia, Viral (diagnosis) |
| 15 | Social Support |
| 15 | Social Isolation (psychology) |
| 15 | Mental Disorders (complications) |
| 15 | Anxiety |
| 14 | Stress, Psychological (psychology) |
| 14 | Stress, Psychological (epidemiology) |
| 14 | Risk Assessment |
| 14 | Resilience, Psychological |
| 14 | Anxiety (etiology) |
| 13 | Vulnerable Populations |
| 13 | Health Personnel |
| 12 | Practice Guidelines as Topic |
| 12 | Internet |
| 12 | Interdisciplinary Research |
| 12 | Infection Control (methods) |
| 12 | Delivery of Health Care |
| 11 | Psychiatry (trends) |
| 11 | Mental Health (trends) |
| 11 | France (epidemiology) |
| 10 | United States |
| 10 | Psychiatry (methods) |
| 10 | Fear |
| 10 | Depression (etiology) |
| 10 | Communication |
| 9 | Quarantine |
| 9 | Psychiatric Status Rating Scales |
| 9 | Pneumonia, Viral (immunology) |
| 9 | Mental Disorders (etiology) |
| 9 | Emotions |
| 9 | Coronavirus Infections (virology) |
| 9 | Coronavirus Infections (immunology) |
| 9 | Communicable Disease Control |
| 9 | Anxiety Disorders (epidemiology) |
| 8 | Uncertainty |
| 8 | Telemedicine (methods) |
| 8 | Stress, Psychological (prevention & control) |
| 8 | Prevalence |
| 8 | Pregnancy |
| 8 | Pneumonia, Viral (virology) |
| 8 | Pneumonia, Viral (mortality) |
| 8 | Pandemics (statistics & numerical data) |
| 8 | Mental Health (statistics & numerical data) |
| 8 | Italy (epidemiology) |
| 8 | Infection Control |
| 8 | Global Health |
| 8 | Germany |
| 8 | Coronavirus Infections (mortality) |
| 8 | Anxiety Disorders (psychology) |
| 8 | Antiviral Agents (therapeutic use) |
| 8 | Age Factors |
| 7 | Universities |
| 7 | Treatment Outcome |
| 7 | Telemedicine (organization & administration) |
| 7 | Suicide (psychology) |
| 7 | Stress, Psychological (therapy) |
| 7 | Stress Disorders, Post-Traumatic (psychology) |
| 7 | Stress Disorders, Post-Traumatic (etiology) |
| 7 | Socioeconomic Factors |
| 7 | Psychotropic Drugs (adverse effects) |
| 7 | Pneumonia, Viral (physiopathology) |
| 7 | Italy |
| 7 | Infection Control (organization & administration) |
| 7 | Health Knowledge, Attitudes, Practice |
| 7 | Health Behavior |
| 7 | Disease Outbreaks (prevention & control) |
| 7 | Coronavirus Infections (physiopathology) |
| 6 | Vulnerable Populations (psychology) |
| 6 | United States (epidemiology) |
| 6 | Telemedicine (trends) |
| 6 | Suicide (statistics & numerical data) |
| 6 | Suicide (prevention & control) |
| 6 | Sleep Initiation and Maintenance Disorders (etiology) |
| 6 | Sleep Initiation and Maintenance Disorders (epidemiology) |
| 6 | Severity of Illness Index |
| 6 | Psychotherapy (methods) |
| 6 | Psychological Trauma (psychology) |
| 6 | Professional Role |
| 6 | Mental Disorders |
| 6 | Mental Disorders (drug therapy) |
| 6 | Logistic Models |
| 6 | Hydroxychloroquine (adverse effects) |
| 6 | Hospitals, Psychiatric |
| 6 | Hospitalization |
| 6 | Health Surveys |
| 6 | France |
| 6 | Drug Repositioning |
| 6 | Drug Interactions |
| 6 | Depression |
| 6 | Communicable Disease Control (methods) |
| 6 | Antiviral Agents (adverse effects) |
| 6 | Animals |
| 6 | Access to Information |
| 5 | Students (psychology) |
| 5 | Stress, Psychological (physiopathology) |
| 5 | Stress Disorders, Post-Traumatic (epidemiology) |
| 5 | Spain |
| 5 | Social Stigma |
| 5 | Sleep Initiation and Maintenance Disorders (psychology) |
| 5 | Schizophrenia (drug therapy) |
| 5 | Schizophrenia (complications) |
| 5 | Research Design |
| 5 | Quality of Life |
| 5 | Psychotherapy |
| 5 | Psychosocial Support Systems |
| 5 | Psychoneuroimmunology |
| 5 | Psychological Trauma (therapy) |
| 5 | Prisoners (psychology) |
| 5 | Pneumonia, Viral (economics) |
| 5 | Personnel, Hospital (psychology) |
| 5 | Parent-Child Relations |
| 5 | Pandemics (economics) |
| 5 | Mental Health Services (trends) |
| 5 | Mental Disorders (prevention & control) |
| 5 | Mental Disorders (diagnosis) |
| 5 | Interprofessional Relations |
| 5 | Inpatients |
| 5 | India (epidemiology) |
| 5 | Hospitals, Psychiatric (organization & administration) |
| 5 | Health Status Disparities |
| 5 | Health Services for the Aged (trends) |
| 5 | Health Services Needs and Demand |
| 5 | Epidemics |
| 5 | Coronavirus Infections (economics) |
| 5 | Caregivers (psychology) |
| 5 | Betacoronavirus (drug effects) |
| 5 | Antipsychotic Agents (adverse effects) |
| 5 | Aging (psychology) |
| 5 | Aging (physiology) |
| 4 | Videoconferencing |
| 4 | Time Factors |
| 4 | Telemedicine (standards) |
| 4 | Substance-Related Disorders (therapy) |
| 4 | Substance-Related Disorders (epidemiology) |
| 4 | Stress, Psychological (diagnosis) |
| 4 | Stress Disorders, Post-Traumatic |
| 4 | Social Media |
| 4 | Smartphone |
| 4 | Sleep Wake Disorders (etiology) |
| 4 | Sleep Wake Disorders (epidemiology) |
| 4 | Sex Factors |
| 4 | Psychotropic Drugs (therapeutic use) |
| 4 | Psychotropic Drugs (administration & dosage) |
| 4 | Psychotic Disorders (psychology) |
| 4 | Psychotic Disorders (etiology) |
| 4 | Psychotic Disorders (drug therapy) |
| 4 | Psychological Trauma (etiology) |
| 4 | Psychiatric Department, Hospital |
| 4 | Personal Protective Equipment |
| 4 | Patient Safety |
| 4 | Patient Isolation |
| 4 | Patient Isolation (psychology) |
| 4 | Parents (psychology) |
| 4 | Organizational Innovation |
| 4 | Occupational Health |
| 4 | Mental Health Services (supply & distribution) |
| 4 | Masks |
| 4 | Information Dissemination |
| 4 | Infectious Disease Transmission, Patient-to-Professional (prevention & control) |
| 4 | India |
| 4 | Hospital Units (organization & administration) |
| 4 | Healthcare Disparities |
| 4 | Health Status |
| 4 | Health Policy |
| 4 | Fear (psychology) |
| 4 | Evidence-Based Medicine |
| 4 | Editorial Policies |
| 4 | Depressive Disorder (epidemiology) |
| 4 | Dementia (therapy) |
| 4 | Dementia (epidemiology) |
| 4 | Delivery of Health Care (organization & administration) |
| 4 | Coronavirus Infections (pathology) |
| 4 | Coronavirus Infections (metabolism) |
| 4 | Clinical Laboratory Techniques |
| 4 | Chloroquine (adverse effects) |
| 4 | Change Management |
| 4 | Biomedical Research |
| 4 | Behavioral Symptoms (therapy) |
| 4 | Behavior, Addictive (psychology) |
| 4 | Behavior, Addictive (epidemiology) |
| 4 | Attitude of Health Personnel |
| 4 | Anxiety Disorders |
| 4 | Anxiety (therapy) |
| 4 | Antipsychotic Agents (therapeutic use) |
| 3 | World Health Organization |
| 3 | Workplace |
| 3 | United Kingdom (epidemiology) |
| 3 | Terminology as Topic |
| 3 | Systematic Reviews as Topic |
| 3 | Spain (epidemiology) |
| 3 | Social Distance |
| 3 | Social Change |
| 3 | Social Behavior |
| 3 | Sleep |
| 3 | Sleep Wake Disorders (psychology) |
| 3 | Sexual Health |
| 3 | Sexual Behavior |
| 3 | SARS Virus |
| 3 | Risk |
| 3 | Research |
| 3 | Refugees (psychology) |
| 3 | Randomized Controlled Trials as Topic |
| 3 | Public Policy |
| 3 | Psychotic Disorders (virology) |
| 3 | Psychotic Disorders (therapy) |
| 3 | Psychotic Disorders (diagnosis) |
| 3 | Psychiatric Department, Hospital (organization & administration) |
| 3 | Protective Devices |
| 3 | Pneumonia, Viral (pathology) |
| 3 | Pneumonia, Viral (metabolism) |
| 3 | Pilot Projects |
| 3 | Physicians (psychology) |
| 3 | Physician's Role |
| 3 | Personal Protective Equipment (trends) |
| 3 | Personal Protective Equipment (supply & distribution) |
| 3 | Patient Selection |
| 3 | Patient Health Questionnaire |
| 3 | Patient Compliance |
| 3 | Patient Care Team |
| 3 | Patient Care Management (organization & administration) |
| 3 | Patient Care Management (methods) |
| 3 | Occupations |
| 3 | Nursing Homes |
| 3 | Nursing Homes (organization & administration) |
| 3 | New York City (epidemiology) |
| 3 | Nervous System Diseases (etiology) |
| 3 | Mortality |
| 3 | Mobile Applications |
| 3 | Mental Health Services (standards) |
| 3 | Medical Staff, Hospital (statistics & numerical data) |
| 3 | Medical Staff, Hospital (psychology) |
| 3 | Medical Staff (psychology) |
| 3 | Mass Screening |
| 3 | Loneliness (psychology) |
| 3 | Life Change Events |
| 3 | Leadership |
| 3 | Iran |
| 3 | Intersectoral Collaboration |
| 3 | International Cooperation |
| 3 | Incidence |
| 3 | Hydroxychloroquine (therapeutic use) |
| 3 | Health Services Accessibility (trends) |
| 3 | Health Personnel (statistics & numerical data) |
| 3 | Health Communication |
| 3 | Global Health (trends) |
| 3 | Geriatrics |
| 3 | Geriatric Psychiatry (methods) |
| 3 | Feeding and Eating Disorders (psychology) |
| 3 | Family (psychology) |
| 3 | Depressive Disorder (psychology) |
| 3 | Delivery of Health Care (methods) |
| 3 | Death |
| 3 | Cost of Illness |
| 3 | Continuity of Patient Care |
| 3 | Consensus |
| 3 | Communicable Disease Control (organization & administration) |
| 3 | Cognitive Behavioral Therapy (methods) |
| 3 | Cognition |
| 3 | Clozapine (therapeutic use) |
| 3 | Clozapine (adverse effects) |
| 3 | Clinical Trials as Topic |
| 3 | Civil Defense |
| 3 | Child Abuse (psychology) |
| 3 | Child Abuse (prevention & control) |
| 3 | Case-Control Studies |
| 3 | Canada (epidemiology) |
| 3 | Burnout, Professional (psychology) |
| 3 | Bioethical Issues |
| 3 | Behavioral Symptoms (etiology) |
| 3 | Autistic Disorder (psychology) |
| 3 | Autistic Disorder (complications) |
| 3 | Attitude to Health |
| 3 | Anxiety (prevention & control) |
| 3 | Anxiety (diagnosis) |
| 3 | Antiviral Agents (pharmacology) |
| 3 | Antipsychotic Agents (administration & dosage) |
| 3 | Analgesics, Opioid (therapeutic use) |
| 3 | Activities of Daily Living |
| 2 | Visitors to Patients |
| 2 | United Kingdom |
| 2 | Triage |
| 2 | Travel |
| 2 | Transients and Migrants |
| 2 | Transgender Persons (psychology) |
| 2 | Terminal Care |
| 2 | Telephone |
| 2 | Telemedicine (statistics & numerical data) |
| 2 | Telemedicine (instrumentation) |
| 2 | Taiwan |
| 2 | Taiwan (epidemiology) |
| 2 | Suicide |
| 2 | Suicide, Attempted |
| 2 | Suicide (trends) |
| 2 | Suicidal Ideation |
| 2 | Substance-Related Disorders |
| 2 | Substance Withdrawal Syndrome (diagnosis) |
| 2 | Stress, Psychological (complications) |
| 2 | Stress Disorders, Traumatic (therapy) |
| 2 | Stress Disorders, Post-Traumatic (therapy) |
| 2 | Stress Disorders, Post-Traumatic (prevention & control) |
| 2 | Stereotyping |
| 2 | Societies, Medical |
| 2 | Social Marginalization |
| 2 | Social Conditions |
| 2 | Smoking (epidemiology) |
| 2 | Sleep Initiation and Maintenance Disorders (therapy) |
| 2 | Single-Blind Method |
| 2 | Severe Acute Respiratory Syndrome |
| 2 | Severe Acute Respiratory Syndrome (psychology) |
| 2 | Severe Acute Respiratory Syndrome (epidemiology) |
| 2 | Self Concept |
| 2 | Schizophrenic Psychology |
| 2 | Retrospective Studies |
| 2 | Respiratory Insufficiency (etiology) |
| 2 | Respiration, Artificial (methods) |
| 2 | Respiration (drug effects) |
| 2 | Resource Allocation |
| 2 | Residential Facilities (standards) |
| 2 | Republic of Korea |
| 2 | Renin-Angiotensin System (physiology) |
| 2 | Remote Consultation |
| 2 | Remote Consultation (methods) |
| 2 | Religion |
| 2 | Religion and Psychology |
| 2 | Relaxation Therapy |
| 2 | Receptors, Virus (metabolism) |
| 2 | Quarantine (statistics & numerical data) |
| 2 | Publishing (trends) |
| 2 | Public Health (methods) |
| 2 | Psychotherapy (statistics & numerical data) |
| 2 | Psychotherapy (organization & administration) |
| 2 | Psychopathology |
| 2 | Psychology, Child |
| 2 | Psychology, Adolescent |
| 2 | Psychiatry (organization & administration) |
| 2 | Psychiatry (education) |
| 2 | Psychiatric Rehabilitation |
| 2 | Psychiatric Department, Hospital (trends) |
| 2 | Protein Domains |
| 2 | Prospective Studies |
| 2 | Prognosis |
| 2 | Procedures and Techniques Utilization |
| 2 | Prisons |
| 2 | Pregnant Women (psychology) |
| 2 | Pregnancy Complications (diagnosis) |
| 2 | Postpartum Period |
| 2 | Physician-Patient Relations |
| 2 | Personnel Staffing and Scheduling |
| 2 | Personal Satisfaction |
| 2 | Periodicals as Topic |
| 2 | Peptidyl-Dipeptidase A (metabolism) |
| 2 | Patients (psychology) |
| 2 | Patient Discharge |
| 2 | Patient Care |
| 2 | Patient Care Management (trends) |
| 2 | Patient Advocacy |
| 2 | Patient Acceptance of Health Care |
| 2 | Parkinson Disease (complications) |
| 2 | Panic Disorder (drug therapy) |
| 2 | Opioid-Related Disorders (drug therapy) |
| 2 | Occupational Diseases (therapy) |
| 2 | Occupational Diseases (etiology) |
| 2 | Obsessive-Compulsive Disorder |
| 2 | Object Attachment |
| 2 | Neurosecretory Systems (physiopathology) |
| 2 | Neurodegenerative Diseases (immunology) |
| 2 | Neurodegenerative Diseases (etiology) |
| 2 | Nervous System Diseases (virology) |
| 2 | Nervous System Diseases (therapy) |
| 2 | Nervous System Diseases (physiopathology) |
| 2 | Morals |
| 2 | Mindfulness |
| 2 | Mentally Ill Persons |
| 2 | Mental Health Services (statistics & numerical data) |
| 2 | Mental Disorders (physiopathology) |
| 2 | Mental Disorders (chemically induced) |
| 2 | Mental Competency (psychology) |
| 2 | Mass Media |
| 2 | Longitudinal Studies |
| 2 | Long QT Syndrome (chemically induced) |
| 2 | Iran (epidemiology) |
| 2 | Internet Access |
| 2 | Internet (statistics & numerical data) |
| 2 | Internationality |
| 2 | Injections |
| 2 | Infectious Disease Transmission, Professional-to-Patient |
| 2 | Immunologic Factors (adverse effects) |
| 2 | Hypnotics and Sedatives (therapeutic use) |
| 2 | Hydroxychloroquine (administration & dosage) |
| 2 | Housing |
| 2 | Hospitals |
| 2 | Hospitalization (trends) |
| 2 | Hospital Restructuring |
| 2 | Homes for the Aged (organization & administration) |
| 2 | Homeless Persons (psychology) |
| 2 | Health Services for the Aged (standards) |
| 2 | Health Services for the Aged (organization & administration) |
| 2 | Health Services Research |
| 2 | Health Services Needs and Demand (statistics & numerical data) |
| 2 | Health Services Accessibility (standards) |
| 2 | Health Services Accessibility (organization & administration) |
| 2 | Health Promotion (methods) |
| 2 | Health Equity |
| 2 | Hand Hygiene |
| 2 | Hand Disinfection |
| 2 | Hallucinations (etiology) |
| 2 | Guilt |
| 2 | Guidelines as Topic |
| 2 | Grief |
| 2 | Geriatric Psychiatry (trends) |
| 2 | Feeding and Eating Disorders |
| 2 | Feeding and Eating Disorders (therapy) |
| 2 | Feeding and Eating Disorders (etiology) |
| 2 | Feeding Behavior (psychology) |
| 2 | Exercise |
| 2 | Exercise (psychology) |
| 2 | Endocytosis (drug effects) |
| 2 | Employment (psychology) |
| 2 | Emigrants and Immigrants |
| 2 | Emergency Service, Hospital (organization & administration) |
| 2 | Emergency Medical Services |
| 2 | Emergencies |
| 2 | Electroconvulsive Therapy (standards) |
| 2 | Electroconvulsive Therapy (methods) |
| 2 | Elder Abuse (psychology) |
| 2 | Elder Abuse (prevention & control) |
| 2 | Education, Distance |
| 2 | Dyspnea (psychology) |
| 2 | Dyspnea (etiology) |
| 2 | Drug Therapy, Combination |
| 2 | Drug Prescriptions |
| 2 | Drug Combinations |
| 2 | Double-Blind Method |
| 2 | Domestic Violence |
| 2 | Domestic Violence (psychology) |
| 2 | Domestic Violence (prevention & control) |
| 2 | Developing Countries |
| 2 | Depression (therapy) |
| 2 | Depression (immunology) |
