Pachyonychia Congenita   1 study
Paget Disease   20 studies
Paget's Disease, Extramammary   1 study
Pain   3055 studies
Pain, Intractable   20 studies
Pain, Postoperative   299 studies
Pallister-Hall Syndrome   1 study
Palmoplantar Keratoderma   1 study
Palmoplantar Keratoderma, Epidermolytic   1 study
Pancoast's Syndrome   3 studies
Pancreatic Cyst   7 studies
Pancreatic Diseases   982 studies
Pancreatic Fistula   5 studies
Pancreatic Islet Cell Tumors   39 studies
Pancreatic Neoplasms   669 studies
Pancreatic Pseudocyst   3 studies
Pancreatitis   81 studies
Pancreatitis, Acute Necrotizing   4 studies
Pancreatitis, Alcoholic   3 studies
Pancreatitis, Chronic   39 studies
Pancytopenia   34 studies
Panhypopituitarism   3 studies
Panic Disorder   81 studies
Panuveitis   40 studies
Papillary Renal Cell Carcinoma   16 studies
Papilledema   3 studies
Papillitis   16 studies
Papilloma   103 studies
Papillomavirus Infections   90 studies
Paraganglioma   23 studies
Parainfluenza Virus Type 3   5 studies
Paralyses, Familial Periodic   3 studies
Paralysis   223 studies
Paralysis, Hyperkalemic Periodic   1 study
Paramyotonia Congenita   2 studies
Paramyxoviridae Infections   70 studies
Paranasal Sinus Neoplasms   3 studies
Paraneoplastic Syndromes   26 studies
Paraneoplastic Syndromes, Nervous System   15 studies
Paranoid Disorders   4 studies
Paraparesis   12 studies
Paraparesis, Spastic   9 studies
Paraparesis, Tropical Spastic   10 studies
Paraphilias   3 studies
Paraplegia   18 studies
Paraproteinemias   917 studies
Parapsoriasis   2 studies
Parasitemia   5 studies
Parasitic Diseases   548 studies
Parathyroid Diseases   115 studies
Parathyroid Neoplasms   8 studies
Paratuberculosis   1 study
Paratyphoid Fever   5 studies
Paresis   35 studies
Paresthesia   10 studies
Parkes Weber Syndrome   2 studies
Parkinson Disease   502 studies
Parkinson Disease, Secondary   1 study
Parkinsonian Disorders   502 studies
Parotid Neoplasms   1 study
Paroxysmal Nocturnal Hemoglobinuria   23 studies
Paroxysmal Ventricular Fibrillation   66 studies
Parvoviridae Infections   6 studies
Passive-Aggressive Personality Disorder   1 study
Patau Syndrome   2 studies
Patellar Dislocation   4 studies
Patellofemoral Pain Syndrome   14 studies
Patent Ductus Arteriosus   19 studies
Pathological Conditions, Anatomical   686 studies
Peanut Hypersensitivity   13 studies
Pearson Syndrome   2 studies
Pediatric Ulcerative Colitis   2 studies
Pedophilia   2 studies
Pelvic Infection   7 studies
Pelvic Inflammatory Disease   14 studies
Pelvic Neoplasms   12 studies
Pelvic Pain   97 studies
Pemphigoid, Benign Mucous Membrane   2 studies
Pemphigoid, Bullous   9 studies
Pemphigus   16 studies
Pemphigus Vulgaris   8 studies
Pemphigus, Benign Familial   1 study
Penile Induration   2 studies
Penile Neoplasms   7 studies
Pentalogy of Cantrell   2 studies
Peptic Ulcer   106 studies
Peptic Ulcer Hemorrhage   19 studies
Peptic Ulcer Perforation   3 studies
Perceptual Disorders   38 studies
Periapical Diseases   7 studies
Periapical Periodontitis   5 studies
Periarthritis   4 studies
Pericardial Effusion   10 studies
Pericarditis   6 studies
Pericarditis, Constrictive   1 study
Pericarditis, Tuberculous   1 study
Periodontal Attachment Loss   3 studies
Periodontal Diseases   96 studies
Periodontitis   43 studies
Peripheral Nervous System Diseases   469 studies
Peripheral Nervous System Neoplasms   30 studies
Peripheral Neuroectodermal Tumor   110 studies
Peripheral T-cell Lymphoma   38 studies
Peripheral Vascular Diseases   259 studies
Peritoneal Diseases   306 studies
Peritoneal Neoplasms   279 studies
Peritonitis   28 studies
Periventricular Leukomalacia   11 studies
Peroxisomal Disorders   16 studies
Persian Gulf Syndrome   10 studies
Persistent Fetal Circulation Syndrome   11 studies
Persistent Hyperinsulinemia Hypoglycemia of Infancy   3 studies
Persistent Vegetative State   4 studies
Personality Disorders   65 studies
Peutz-Jeghers Syndrome   5 studies
Peyronie Disease   2 studies
Phantom Limb   22 studies
Pharyngeal Diseases   193 studies
Pharyngeal Neoplasms   110 studies
Pharyngitis   24 studies
Phenylketonuria, Maternal   1 study
Phenylketonurias   24 studies
Pheochromocytoma   30 studies
Philadelphia Chromosome   154 studies
Phlebitis   26 studies
Phobic Disorders   85 studies
Phosphate Diabetes   2 studies
Phosphoglycerate Kinase Deficiency   1 study
Photophobia   5 studies
Photosensitive Epilepsy   5 studies
Photosensitivity Disorders   16 studies
Phyllodes Tumor   2 studies
Phytanic Acid Oxidase Deficiency   2 studies
Pick Disease of the Brain   29 studies
Picornaviridae Infections   106 studies
Piebaldism   1 study
Pigment-dispersion Syndrome   3 studies
Pigmentary Retinopathy   35 studies
Pigmentation Disorders   56 studies
Pilomatrixoma   2 studies
Pilonidal Sinus   4 studies
Pinealoma   35 studies
Pituitary ACTH Hypersecretion   10 studies
Pituitary Diseases   200 studies
Pituitary Neoplasms   31 studies
Pityriasis   1 study
Pityriasis Rubra Pilaris   1 study
Placenta Previa   1 study
Placenta, Retained   2 studies
Placental Insufficiency   2 studies
Plague   4 studies
Plasma Cell Leukemia   3 studies
Plasmacytoma   68 studies
Plasmacytoma Anaplastic   68 studies
Platelet Storage Pool Deficiency   7 studies
Platybasia   1 study
Pleural Diseases   69 studies
Pleural Effusion   68 studies
Pleural Effusion, Malignant   38 studies
Pleural Neoplasms   29 studies
Pleurisy   8 studies
Pleuropneumonia   10 studies
Pleuropulmonary Blastoma   2 studies
Pneumococcal Infections   51 studies
Pneumoconiosis   4 studies
Pneumocystis Infections   58 studies
Pneumocystosis   45 studies
Pneumonia   415 studies
Pneumonia, Aspiration   8 studies
Pneumonia, Bacterial   42 studies
Pneumonia, Eosinophilic   1 study
Pneumonia, Mycoplasma   5 studies
Pneumonia, Pneumococcal   10 studies
Pneumonia, Pneumocystis   60 studies
Pneumonia, Staphylococcal   1 study
Pneumonia, Ventilator-Associated   61 studies
Pneumonia, Viral   1 study
Pneumoperitoneum   6 studies
Pneumothorax   22 studies
Poisoning   130 studies
Poliomyelitis   74 studies
Polyarteritis Nodosa   7 studies
Polyarthritis   5 studies
Polycystic Kidney Diseases   27 studies
Polycystic Kidney, Autosomal Dominant   21 studies
Polycystic Kidney, Autosomal Recessive   2 studies
Polycystic Liver Disease   3 studies
Polycystic Ovarian Syndrome   104 studies
Polycystic Ovary Syndrome   104 studies
Polycythemia   128 studies
Polycythemia Vera   124 studies
Polydactyly   2 studies
Polyhydramnios   3 studies
Polymyalgia Rheumatica   13 studies
Polymyositis   25 studies
Polyneuropathies   74 studies
Polyomavirus Infections   9 studies
Polyps   114 studies
Polyradiculoneuropathy   13 studies
Polyradiculoneuropathy, Chronic Inflammatory Demyelinating   8 studies
Porokeratosis   1 study
Porphyria Cutanea Tarda   3 studies
Porphyria, Acute Intermittent   3 studies
Porphyria, Congenital Erythropoietic   15 studies
Porphyria, Erythropoietic   15 studies
Porphyrias   15 studies
Porphyrias, Hepatic   8 studies
Port-Wine Stain   14 studies
Portal Hypertension   47 studies
Portal Thrombosis   1 study
Portal Vein Thrombosis   1 study
Post Polio Syndrome   7 studies
Post-Concussion Syndrome   8 studies
Post-Dural Puncture Headache   5 studies
Post-transplant Lymphoproliferative Disease   5 studies
Post-traumatic Epilepsy   2 studies
Post-Traumatic Headache   5 studies
Posterior Tibial Tendon Dysfunction   2 studies
Postoperative Complications   467 studies
Postoperative Hemorrhage   18 studies
Postoperative Nausea and Vomiting   52 studies
Postpartum Hemorrhage   19 studies
Postpartum Thyroiditis   1 study
Postpericardiotomy Syndrome   1 study
Postphlebitic Syndrome   27 studies
Postpoliomyelitis Syndrome   7 studies
Postthrombotic Syndrome   27 studies
Postural Hypotension   29 studies
Postural Orthostatic Tachycardia Syndrome   14 studies
Pouchitis   4 studies
Poxviridae Disease   1 study
Poxviridae Infections   61 studies
Prader-Willi Syndrome   14 studies
Pre-Eclampsia   85 studies
Pre-Excitation Syndromes   2 studies
Precancerous Conditions   954 studies
Precocious Puberty   17 studies
Precursor B-Cell Lymphoblastic Leukemia-Lymphoma   3 studies
Precursor Cell Lymphoblastic Leukemia-Lymphoma   814 studies
Precursor T-Cell Lymphoblastic Leukemia-Lymphoma   14 studies
Prediabetic State   73 studies
Pregnancy Complications   496 studies
Pregnancy Complications, Cardiovascular   1 study
Pregnancy Complications, Infectious   35 studies
Pregnancy in Diabetics   8 studies
Pregnancy, Ectopic   6 studies
Pregnancy, Prolonged   5 studies
Pregnancy, Tubal   1 study
Preleukemia   836 studies
Premature Birth   130 studies
Premenstrual Syndrome   30 studies
Prenatal Exposure Delayed Effects   4 studies
Presbycusis   4 studies
Presbyopia   9 studies
Pressure Ulcer   38 studies
Priapism   2 studies
Primary Agammaglobulinemia   4 studies
Primary Aldosteronism   8 studies
Primary Amyloidosis   21 studies
Primary Biliary Cirrhosis   20 studies
Primary Ciliary Dyskinesia   10 studies
Primary Effusion Lymphoma   17 studies
Primary Immunodeficiency Disorders   4 studies
Primary Progressive Aphasia   29 studies
Primary Sclerosing Cholangitis   10 studies
Prinzmetal's Variant Angina   3 studies
Prion Diseases   2 studies
Proctitis   3 studies
Progeria   4 studies
Progressive Multifocal Leukoencephalopathy   8 studies
Progressive Spinal Muscular Atrophy   21 studies
Progressive Supranuclear Palsy   15 studies
Prolactinoma   5 studies
Prolapse   88 studies
Prolymphocytic Leukemia   125 studies
Propionic Acidemia   1 study
Prostate Cancer, Familial   1 study
Prostatic Diseases   1487 studies
Prostatic Hyperplasia   125 studies
Prostatic Intraepithelial Neoplasia   10 studies
Prostatic Neoplasms   1398 studies
Prostatitis   23 studies
Prosthesis-Related Infections   1 study
Protein C Deficiency   2 studies
Protein Deficiency   5 studies
Protein-Energy Malnutrition   5 studies
Proteinuria   137 studies
Proteus Infections   2 studies
Proteus Syndrome   1 study
Protoporphyria   3 studies
Protoporphyria, Erythropoietic   3 studies
Protozoan Infections   458 studies
Prurigo   3 studies
Prurigo Nodularis   3 studies
Pruritus   64 studies
Pseudarthrosis   4 studies
Pseudo-Turner Syndrome   2 studies
Pseudohermaphroditism   2 studies
Pseudohypoaldosteronism   4 studies
Pseudohypoaldosteronism Type 1, Autosomal Recessive   1 study
Pseudohypoparathyroidism   4 studies
Pseudomonas Infections   8 studies
Pseudomyxoma Peritonei   4 studies
Pseudophakia   4 studies
Pseudopseudohypoparathyroidism   2 studies
Pseudotumor Cerebri   45 studies
Pseudoxanthoma Elasticum   4 studies
Psoriasis   341 studies
Psychomotor Agitation   136 studies
Psychoses, Substance-Induced   2 studies
Psychotic Disorders   1474 studies
Pterygium   22 studies
Pterygium of the Conjunctiva   22 studies
Puberty, Delayed   2 studies
Puberty, Precocious   18 studies
Puerperal Disorders   57 studies
Puerperal Infection   1 study
Pulmonary Alveolar Proteinosis   2 studies
Pulmonary Arteriovenous Malformation   5 studies
Pulmonary Atresia   2 studies
Pulmonary Blastoma   2 studies
Pulmonary Disease, Chronic Obstructive   705 studies
Pulmonary Edema   29 studies
Pulmonary Edema of Mountaineers   6 studies
Pulmonary Embolism   122 studies
Pulmonary Emphysema   117 studies
Pulmonary Eosinophilia   1 study
Pulmonary Fibrosis   85 studies
Pulmonary Heart Disease   7 studies
Pulmonary Valve Insufficiency   5 studies
Pulmonary Valve Stenosis   5 studies
Pulmonary Veins Stenosis   4 studies
Pulmonary Veno-Occlusive Disease   2 studies
Pulmonic Stenosis   5 studies
Pulpitis   2 studies
Pure Red Cell Aplasia   14 studies
Purine-Pyrimidine Metabolism, Inborn Errors   27 studies
Purpura   89 studies
Purpura, Schoenlein-Henoch   4 studies
Purpura, Thrombocytopenic   85 studies
Purpura, Thrombocytopenic, Idiopathic   52 studies
Purpura, Thrombotic Thrombocytopenic   10 studies
Pyelonephritis   16 studies
Pyloric Stenosis   3 studies
Pyloric Stenosis, Hypertrophic   1 study
Pyoderma   8 studies
Pyoderma Gangrenosum   3 studies
Pyropoikilocytosis   1 study
Pyrosis   61 studies
Pyuria   3 studies