| 640 | Respiratory Distress Syndrome, Adult |
| 630 | Humans |
| 574 | Prone Position |
| 332 | Respiration, Artificial |
| 269 | Male |
| 240 | Female |
| 197 | Positive-Pressure Respiration |
| 197 | Adult |
| 187 | Middle Aged |
| 116 | Aged |
| 105 | Treatment Outcome |
| 103 | Critical Care |
| 102 | Pulmonary Gas Exchange |
| 98 | Patient Positioning |
| 93 | Extracorporeal Membrane Oxygenation |
| 84 | Oxygen |
| 82 | Prospective Studies |
| 76 | Supine Position |
| 76 | Lung |
| 73 | Hypoxia |
| 72 | Hemodynamics |
| 71 | Respiratory Mechanics |
| 62 | Nitric Oxide |
| 61 | Animals |
| 59 | Tidal Volume |
| 57 | Blood Gas Analysis |
| 49 | Time Factors |
| 49 | Intensive Care Units |
| 43 | Respiratory Insufficiency |
| 42 | Retrospective Studies |
| 41 | Tomography, X-Ray Computed |
| 41 | Adolescent |
| 40 | High-Frequency Ventilation |
| 39 | Randomized Controlled Trials as Topic |
| 37 | Severity of Illness Index |
| 35 | Posture |
| 33 | Risk Factors |
| 32 | Child |
| 32 | Acute Lung Injury |
| 30 | Pneumonia, Viral |
| 30 | Pandemics |
| 29 | Coronavirus Infections |
| 28 | Administration, Inhalation |
| 25 | Respiratory Function Tests |
| 25 | Monitoring, Physiologic |
| 24 | Pulmonary Alveoli |
| 23 | Disease Models, Animal |
| 23 | Aged, 80 and over |
| 22 | Pulmonary Surfactants |
| 22 | Practice Guidelines as Topic |
| 22 | Combined Modality Therapy |
| 22 | Acute Disease |
| 21 | Lung Compliance |
| 21 | Betacoronavirus |
| 20 | Ventilator-Induced Lung Injury |
| 20 | Survival Rate |
| 18 | Vasodilator Agents |
| 18 | Prognosis |
| 18 | Pressure Ulcer |
| 18 | Oxygen Consumption |
| 18 | Neuromuscular Blocking Agents |
| 18 | Fluid Therapy |
| 17 | Pulmonary Ventilation |
| 17 | Pulmonary Circulation |
| 17 | Infant |
| 17 | Infant, Newborn |
| 17 | Critical Illness |
| 17 | Analysis of Variance |
| 17 | Adrenal Cortex Hormones |
| 16 | Swine |
| 16 | Clinical Trials as Topic |
| 16 | Carbon Dioxide |
| 16 | APACHE |
| 15 | Young Adult |
| 15 | Survival Analysis |
| 15 | Respiration |
| 15 | Random Allocation |
| 15 | Patient Selection |
| 15 | Oxygen Inhalation Therapy |
| 15 | Multiple Trauma |
| 15 | Hospital Mortality |
| 15 | Child, Preschool |
| 14 | Respiratory Therapy |
| 14 | Intubation, Intratracheal |
| 14 | Evidence-Based Medicine |
| 14 | Dogs |
| 14 | Bronchodilator Agents |
| 13 | Ventilation-Perfusion Ratio |
| 13 | Liquid Ventilation |
| 12 | Statistics, Nonparametric |
| 12 | Respiratory Distress Syndrome, Newborn |
| 12 | Pressure |
| 12 | Length of Stay |
| 11 | Radiography |
| 11 | Pulmonary Edema |
| 11 | Pneumonia, Ventilator-Associated |
| 11 | Influenza, Human |
| 11 | Incidence |
| 10 | Research Design |
| 10 | Pulmonary Atelectasis |
| 10 | Predictive Value of Tests |
| 10 | Partial Pressure |
| 10 | Meta-Analysis as Topic |
| 10 | Lung Volume Measurements |
| 10 | Beds |
| 9 | Ventilators, Mechanical |
| 9 | Postoperative Complications |
| 9 | Pilot Projects |
| 9 | Oleic Acid |
| 9 | Nurse's Role |
| 9 | Influenza A Virus, H1N1 Subtype |
| 9 | Fluorocarbons |
| 9 | Algorithms |
| 8 | Respiratory System Agents |
| 8 | Pneumonia |
| 8 | Physical Therapy Modalities |
| 8 | Lung Injury |
| 8 | Lung Diseases |
| 8 | Hypercapnia |
| 8 | France |
| 8 | Cardiac Output |
| 8 | Abdomen |
| 7 | Ventilator Weaning |
| 7 | Risk Assessment |
| 7 | Patient Care Planning |
| 7 | Nursing Assessment |
| 7 | Multivariate Analysis |
| 7 | Kaplan-Meier Estimate |
| 7 | Injury Severity Score |
| 7 | Hospitals, University |
| 6 | Wounds and Injuries |
| 6 | Subarachnoid Hemorrhage |
| 6 | Rotation |
| 6 | Glucocorticoids |
| 6 | Feasibility Studies |
| 6 | Continuous Positive Airway Pressure |
| 6 | Bronchoscopy |
| 6 | Almitrine |
| 5 | Ventricular Dysfunction, Right |
| 5 | Shock, Septic |
| 5 | Sheep |
| 5 | Sepsis |
| 5 | Safety |
| 5 | Rabbits |
| 5 | Prevalence |
| 5 | Pregnancy |
| 5 | Positive-Pressure Respiration, Intrinsic |
| 5 | Nutritional Support |
| 5 | Logistic Models |
| 5 | Linear Models |
| 5 | Inflammation |
| 5 | Germany |
| 5 | Equipment Design |
| 5 | Enteral Nutrition |
| 5 | Echocardiography, Transesophageal |
| 5 | Drainage |
| 5 | Disease Management |
| 5 | Cross-Over Studies |
| 5 | Conscious Sedation |
| 5 | Cohort Studies |
| 5 | Case-Control Studies |
| 5 | Airway Resistance |
| 4 | Vasoconstrictor Agents |
| 4 | Vascular Resistance |
| 4 | Transportation of Patients |
| 4 | Trachea |
| 4 | Surveys and Questionnaires |
| 4 | Stress, Mechanical |
| 4 | Severe Acute Respiratory Syndrome |
| 4 | Respiratory Dead Space |
| 4 | Reproducibility of Results |
| 4 | Rats |
| 4 | Radiography, Thoracic |
| 4 | Pulmonary Heart Disease |
| 4 | Proportional Hazards Models |
| 4 | Positron-Emission Tomography |
| 4 | Pneumothorax |
| 4 | Patient Care Team |
| 4 | Oximetry |
| 4 | Organ Dysfunction Scores |
| 4 | Obesity, Morbid |
| 4 | Noninvasive Ventilation |
| 4 | Neuromuscular Blockade |
| 4 | Multicenter Studies as Topic |
| 4 | Models, Biological |
| 4 | Lung Diseases, Interstitial |
| 4 | Intracranial Pressure |
| 4 | Inflammation Mediators |
| 4 | Extravascular Lung Water |
| 4 | Extracorporeal Circulation |
| 4 | Epoprostenol |
| 4 | Electric Impedance |
| 4 | Diagnosis, Differential |
| 4 | Data Interpretation, Statistical |
| 4 | Burns |
| 4 | Bronchoalveolar Lavage Fluid |
| 4 | Blood Pressure |
| 4 | Bed Rest |
| 3 | Wounds, Nonpenetrating |
| 3 | Work of Breathing |
| 3 | Ultrasonography |
| 3 | Tomography |
| 3 | Thoracic Injuries |
| 3 | Suction |
| 3 | Sensitivity and Specificity |
| 3 | Salvage Therapy |
| 3 | Renal Insufficiency |
| 3 | Recovery of Function |
| 3 | ROC Curve |
| 3 | Pulmonary Disease, Chronic Obstructive |
| 3 | Postoperative Care |
| 3 | Pneumonia, Pneumococcal |
| 3 | Platelet Aggregation Inhibitors |
| 3 | Outcome and Process Assessment, Health Care |
| 3 | Outcome Assessment, Health Care |
| 3 | Odds Ratio |
| 3 | Multiple Organ Failure |
| 3 | Models, Animal |
| 3 | Lung Transplantation |
| 3 | Lifting |
| 3 | Italy |
| 3 | Intensive Care Units, Pediatric |
| 3 | Injections, Intravenous |
| 3 | Inhalation |
| 3 | Hypertension |
| 3 | Hypertension, Pulmonary |
| 3 | Hospital Costs |
| 3 | Heart |
| 3 | Heart Arrest |
| 3 | Health Services Research |
| 3 | Gravitation |
| 3 | Functional Residual Capacity |
| 3 | Follow-Up Studies |
| 3 | Fatal Outcome |
| 3 | Evaluation Studies as Topic |
| 3 | Drug Evaluation, Preclinical |
| 3 | Diuretics |
| 3 | Disease Progression |
| 3 | Cross-Sectional Studies |
| 3 | Cross Infection |
| 3 | Contraindications |
| 3 | Clinical Nursing Research |
| 3 | Chronic Disease |
| 3 | Catheterization, Central Venous |
| 3 | Cardiac Surgical Procedures |
| 3 | Cannula |
| 3 | Barotrauma |
| 3 | Anti-Inflammatory Agents |
| 3 | Air Ambulances |
| 3 | Acetylcysteine |
| 2 | Wounds, Gunshot |
| 2 | Water-Electrolyte Balance |
| 2 | Wakefulness |
| 2 | Ventricular Function, Right |
| 2 | United States |
| 2 | Trauma Centers |
| 2 | Total Lung Capacity |
| 2 | Therapeutic Irrigation |
| 2 | Systematic Reviews as Topic |
| 2 | Survivors |
| 2 | Survival |
| 2 | Surface Tension |
| 2 | Stroke |
| 2 | Stress, Physiological |
| 2 | Standard of Care |
| 2 | Single-Blind Method |
| 2 | Respiratory Physiological Phenomena |
| 2 | Renal Replacement Therapy |
| 2 | Regional Blood Flow |
| 2 | Quality of Life |
| 2 | Pulmonary Wedge Pressure |
| 2 | Pulmonary Fibrosis |
| 2 | Pulmonary Embolism |
| 2 | Prostaglandins |
| 2 | Prostaglandins I |
| 2 | Pronation |
| 2 | Probability |
| 2 | Pregnancy Complications, Infectious |
| 2 | Practice Patterns, Physicians' |
| 2 | Pneumonia, Mycoplasma |
| 2 | Pneumonectomy |
| 2 | Patient Transfer |
| 2 | Patient Safety |
| 2 | Organ Size |
| 2 | Obesity |
| 2 | Nursing |
| 2 | Myositis Ossificans |
| 2 | Mucociliary Clearance |
| 2 | Microcirculation |
| 2 | Malaria |
| 2 | Lung Neoplasms |
| 2 | Liver |
| 2 | Kinetics |
| 2 | Iraq War, 2003-2011 |
| 2 | Interleukin-6 |
| 2 | Indocyanine Green |
| 2 | Iloprost |
| 2 | Iceland |
| 2 | Hydrostatic Pressure |
| 2 | Hospitals |
| 2 | Hospitals, Teaching |
| 2 | Heparin |
| 2 | Hemothorax |
| 2 | Hemorrhage |
| 2 | Hemofiltration |
| 2 | Heart Ventricles |
| 2 | Global Health |
| 2 | Glasgow Coma Scale |
| 2 | Free Radical Scavengers |
| 2 | Forecasting |
| 2 | Evidence-Based Practice |
| 2 | Equipment Failure |
| 2 | Electrocardiography |
| 2 | Early Diagnosis |
| 2 | Early Ambulation |
| 2 | Dyspnea |
| 2 | Diffusion of Innovation |
| 2 | Diastole |
| 2 | Diaphragm |
| 2 | Diagnostic Imaging |
| 2 | Delirium |
| 2 | Decision Trees |
| 2 | Cytokines |
| 2 | Critical Care Nursing |
| 2 | Community-Acquired Infections |
| 2 | Coloring Agents |
| 2 | Clinical Protocols |
| 2 | Clinical Competence |
| 2 | Chi-Square Distribution |
| 2 | Chest Wall Oscillation |
| 2 | Chest Tubes |
| 2 | Cause of Death |
| 2 | Catheterization, Swan-Ganz |
| 2 | Cardiovascular Surgical Procedures |
| 2 | Burn Units |
| 2 | Bronchoalveolar Lavage |
| 2 | Bronchi |
| 2 | Brain |
| 2 | Brain Ischemia |
| 2 | Brain Injuries |
| 2 | Biomarkers |
| 2 | Berlin |
| 2 | Anti-Bacterial Agents |
| 2 | Anesthesia |
| 2 | Analgesia |
| 2 | Allied Health Personnel |
| 2 | Age Factors |
| 2 | Accidents, Traffic |
| 1 | Wound Healing |
| 1 | Weight-Bearing |
| 1 | Water-Electrolyte Imbalance |
| 1 | Warfare |
| 1 | Vomiting |
| 1 | Virus Shedding |
| 1 | Vertebrobasilar Insufficiency |
| 1 | Ventricular Function, Left |
| 1 | Ventricular Dysfunction, Left |
| 1 | Ventilation |
| 1 | Venous Thrombosis |
| 1 | Vasoconstriction |
| 1 | Vascular Access Devices |
| 1 | Urokinase-Type Plasminogen Activator |
| 1 | Up-Regulation |
| 1 | United Kingdom |
| 1 | Uncertainty |
| 1 | Ultrasonography, Doppler, Transcranial |
| 1 | Tumor Necrosis Factor-alpha |
| 1 | Tuberculosis, Pulmonary |
| 1 | Treatment Failure |
| 1 | Transfusion Reaction |
| 1 | Transdermal Patch |
| 1 | Tracheotomy |
| 1 | Tomography, Spiral Computed |
| 1 | Tomography, Emission-Computed |
| 1 | Tomography, Emission-Computed, Single-Photon |
| 1 | Tissue Distribution |
| 1 | Time |
| 1 | Thrombophilia |
| 1 | Thrombocytopenia |
| 1 | Thorax |
| 1 | Thoracic Wall |
| 1 | Thoracic Vertebrae |
| 1 | Thermodilution |
| 1 | Therapy, Computer-Assisted |
| 1 | Terminology as Topic |
| 1 | Technetium Tc 99m Pentetate |
| 1 | Technetium Tc 99m Aggregated Albumin |
| 1 | Systole |
| 1 | Sus scrofa |
| 1 | Surgical Wound Infection |
| 1 | Surgical Procedures, Operative |
| 1 | Surface-Active Agents |
| 1 | Supination |
| 1 | Sulfones |
| 1 | Sulfonamides |
| 1 | Stroke Volume |
| 1 | Sternocostal Joints |
| 1 | Stem Cell Transplantation |
| 1 | Splenectomy |
| 1 | Spleen |
| 1 | Splanchnic Circulation |
| 1 | Spine |
| 1 | Spinal Cord Injuries |
| 1 | Sodium Chloride |
| 1 | Socioeconomic Factors |
| 1 | Societies, Medical |
| 1 | Smoking |
| 1 | Smoke Inhalation Injury |
| 1 | Sleep Apnea, Obstructive |
| 1 | Skull Fractures |
| 1 | Silicone Elastomers |
| 1 | Sildenafil Citrate |
| 1 | Signal Transduction |
| 1 | Shoulder Joint |
| 1 | Shock |
| 1 | Sex Factors |
| 1 | Sex Distribution |
| 1 | Serine Proteinase Inhibitors |
| 1 | Sarcoidosis |
| 1 | Safety Management |
| 1 | Rupture |
| 1 | Risk |
| 1 | Review Literature as Topic |
| 1 | Reverse Transcriptase Polymerase Chain Reaction |
| 1 | Respiratory Transport |
| 1 | Respiratory Tract Infections |
| 1 | Respiratory Syncytial Virus Infections |
| 1 | Respiratory Rate |
| 1 | Respiratory Protective Devices |
| 1 | Republic of Korea |
| 1 | Renal Dialysis |
| 1 | Renal Circulation |
| 1 | Renal Blood Flow, Effective |
| 1 | Regression Analysis |
| 1 | Registries |
| 1 | Recruitment, Neurophysiological |
| 1 | Recombinant Proteins |
| 1 | Rats, Wistar |
| 1 | Rats, Sprague-Dawley |
| 1 | Quality-Adjusted Life Years |
| 1 | Quality Indicators, Health Care |
| 1 | Quality Improvement |
| 1 | Quality Assurance, Health Care |
| 1 | Qatar |
| 1 | Purines |
| 1 | Pulmonary Medicine |
| 1 | Pulmonary Diffusing Capacity |
| 1 | Pulmonary Artery |
| 1 | Pseudomonas Infections |
| 1 | Proteinuria |
| 1 | Protein C |
| 1 | Protective Factors |
| 1 | Professional Practice |
| 1 | Primary Graft Dysfunction |
| 1 | Pregnancy Trimester, Third |
| 1 | Pregnancy Complications |
| 1 | Precision Medicine |
| 1 | Precipitating Factors |
| 1 | Postoperative Hemorrhage |
| 1 | Polymyxin B |
| 1 | Polymerase Chain Reaction |
| 1 | Polycystic Kidney, Autosomal Dominant |
| 1 | Point-of-Care Systems |
| 1 | Pleural Effusion |
| 1 | Pleura |
| 1 | Plethysmography, Impedance |
| 1 | Plasmodium |
| 1 | Piperazines |
| 1 | Pierre Robin Syndrome |
| 1 | Phenylephrine |
| 1 | Personal Satisfaction |
| 1 | Personal Protective Equipment |
| 1 | Peritonitis |
| 1 | Peritoneal Dialysis |
| 1 | Pericardiocentesis |
| 1 | Perfusion |
| 1 | Pennsylvania |
| 1 | Pelvis |
| 1 | Pediatrics |
| 1 | Pediatric Nursing |
| 1 | Patient Education as Topic |
| 1 | Patient Discharge |
| 1 | Patient Compliance |
| 1 | Patient Advocacy |
| 1 | Patient Admission |
| 1 | Paralysis |
| 1 | Pancreatitis, Acute Necrotizing |
| 1 | Pain |
| 1 | Pain Measurement |
| 1 | Overweight |
| 1 | Osteoarthropathy, Secondary Hypertrophic |
| 1 | Ossification, Heterotopic |
| 1 | Ossification of Posterior Longitudinal Ligament |
| 1 | Oseltamivir |
| 1 | Orthotic Devices |
| 1 | Operating Rooms |
| 1 | Operating Room Nursing |
| 1 | Ontario |
| 1 | Oleic Acids |
| 1 | Ohio |
