Cachexia   60 studies
Calcinosis   19 studies
Calculi   108 studies
Campylobacter Infections   2 studies
Canavan Disease   3 studies
Candidiasis   99 studies
Candidiasis, Oral   30 studies
Candidiasis, Vulvovaginal   7 studies
Carbamoyl-Phosphate Synthase I Deficiency Disease   1 study
Carbon Monoxide Poisoning   5 studies
Carbuncle   2 studies
Carcinoid Syndrome   37 studies
Carcinoid Tumor   104 studies
Carcinoma   4854 studies
Carcinoma in Situ   182 studies
Carcinoma, Adenoid Cystic   69 studies
Carcinoma, Adenosquamous   64 studies
Carcinoma, Basal Cell   140 studies
Carcinoma, Basosquamous   16 studies
Carcinoma, Bronchogenic   10 studies
Carcinoma, Ductal   74 studies
Carcinoma, Ductal, Breast   114 studies
Carcinoma, Endometrioid   49 studies
Carcinoma, Giant Cell   2 studies
Carcinoma, Hepatocellular   365 studies
Carcinoma, Intraductal, Noninfiltrating   80 studies
Carcinoma, Islet Cell   42 studies
Carcinoma, Large Cell   7 studies
Carcinoma, Lobular   35 studies
Carcinoma, Medullary   35 studies
Carcinoma, Merkel Cell   11 studies
Carcinoma, Neuroendocrine   254 studies
Carcinoma, Non-Small-Cell Lung   1580 studies
Carcinoma, Pancreatic Ductal   3 studies
Carcinoma, Papillary   23 studies
Carcinoma, Papillary, Follicular   1 study
Carcinoma, Renal Cell   591 studies
Carcinoma, Small Cell   395 studies
Carcinoma, Squamous Cell   712 studies
Carcinoma, Squamous Cell of Head and Neck   165 studies
Carcinoma, Transitional Cell   159 studies
Carcinosarcoma   35 studies
Cardiac Complexes, Premature   20 studies
Cardiac Output, High   3 studies
Cardiac Output, Low   14 studies
Cardiac Tamponade   1 study
Cardiogenital Syndrome   1 study
Cardiomegaly   78 studies
Cardiomyopathies   211 studies
Cardiomyopathy, Alcoholic   1 study
Cardiomyopathy, Dilated   44 studies
Cardiomyopathy, Hypertrophic   38 studies
Cardiomyopathy, Hypertrophic, Familial   3 studies
Cardiomyopathy, Restrictive   1 study
Cardiospasm   11 studies
Cardiovascular Abnormalities   266 studies
Cardiovascular Infections   14 studies
Carney Syndrome   2 studies
Carnitine Palmitoyl Transferase 2 Deficiency   1 study
Caroli Disease   1 study
Carotid Artery Diseases   114 studies
Carotid Artery Injuries   1 study
Carotid Stenosis   55 studies
Carpal Tunnel Syndrome   31 studies
Cartilage Diseases   10 studies
Castleman's Disease   8 studies
Cataplexy   9 studies
Cataract   216 studies
Catatonia   2 studies
Causalgia   7 studies
Celiac Disease   33 studies
Cellulitis   27 studies
Central Cord Syndrome   4 studies
Central Nervous System Diseases   4556 studies
Central Nervous System Fungal Infections   26 studies
Central Nervous System Infections   309 studies
Central Nervous System Lymphoma, Primary   168 studies
Central Nervous System Neoplasms   848 studies
Central Serous Chorioretinopathy   12 studies
Centrotemporal Epilepsy   2 studies
Ceramide Trihexosidosis   45 studies
Cerebellar Ataxia   12 studies
Cerebellar Degeneration   1 study
Cerebellar Diseases   28 studies
Cerebral Amyloid Angiopathy   1 study
Cerebral Aneurysm   8 studies
Cerebral Arterial Diseases   13 studies
Cerebral Hemorrhage   49 studies
Cerebral Infarction   855 studies
Cerebral Palsy   91 studies
Cerebrospinal Fluid Leak   1 study
Cerebrospinal Fluid Rhinorrhea   1 study
Cerebrotendinous Xanthomatosis   2 studies
Cerebrovascular Disorders   958 studies
Cerebrovascular Trauma   3 studies
Ceroid Lipofuscinosis, Neuronal 2   3 studies
Cervical Intraepithelial Neoplasia   76 studies
Chagas Cardiomyopathy   2 studies
Chagas Disease   10 studies
Chalazion   1 study
Chandler's Syndrome   2 studies
Charcot-Marie-Tooth Disease   45 studies
Charcot-Marie-Tooth Disease With Pyramidal Features, Autosomal Dominant   1 study
Charcot-Marie-Tooth Disease, Type 1A   2 studies
Chediak-Higashi Syndrome   8 studies
Cheilitis   2 studies
Chest Pain   206 studies
Cheyne-Stokes Respiration   7 studies
Chickenpox   78 studies
Chikungunya   1 study
Child Behavior Disorders   4 studies
Child Development Disorders, Pervasive   149 studies
Childhood Disintegrative Disorder   2 studies
Childhood-Onset Schizophrenia   6 studies
Chlamydia Infections   56 studies
Cholangiocarcinoma   63 studies
Cholangitis   13 studies
Cholangitis, Sclerosing   11 studies
Cholecystitis   19 studies
Cholecystitis, Acute   4 studies
Cholecystolithiasis   37 studies
Choledocholithiasis   8 studies
Cholelithiasis   37 studies
Cholera   21 studies
Cholestasis   52 studies
Cholestasis, Extrahepatic   1 study
Cholestasis, Intrahepatic   25 studies
Cholesteatoma   2 studies
Cholesterol Ester Storage Disease   3 studies
Chondrocalcinosis   2 studies
Chondrocalcinosis 2   1 study
Chondrosarcoma   45 studies
Chordoma   15 studies
Chorea   46 studies
Chorea Minor   2 studies
Choreoacanthocytosis   1 study
Chorioamnionitis   13 studies
Choriocarcinoma   46 studies
Chorioretinitis   1 study
Choristoma   2 studies
Choroid Diseases   105 studies
Choroid Neoplasms   3 studies
Choroid Plexus Neoplasms   77 studies
Choroidal Neovascularization   116 studies
Choroideremia   1 study
Choroiditis   5 studies
Chromophil Renal Cell Carcinoma   14 studies
Chromosome Aberrations   80 studies
Chromosome Deletion   6 studies
Chromosome Disorders   113 studies
Chronic Berylliosis   2 studies
Chronic Disease   283 studies
Chronic Granulomatous Disease   24 studies
Chronic Inflammatory Demyelinating Polyneuropathy   6 studies
Chronic Lymphocytic Leukemia   911 studies
Chronic Myelogenous Leukemia   712 studies
Chronic Myelomonocytic Leukemia   309 studies
Chronic Myeloproliferative Disorders   178 studies
Chronic Neutropenia   2 studies
Chronic, Infantile, Neurological, Cutaneous, Articular Syndrome   5 studies
Chronobiology Disorders   23 studies
Churg-Strauss Syndrome   12 studies
Chylothorax   2 studies
Chylothorax, Congenital   1 study
Cicatricial Pemphigoid   2 studies
Cicatrix   104 studies
Cicatrix, Hypertrophic   6 studies
Ciliary Motility Disorders   10 studies
Citrullinemia   2 studies
Clear Cell Renal Cell Carcinoma   83 studies
Cleft Lip   13 studies
Cleft Palate   20 studies
Clostridium Difficile   36 studies
Clostridium Infections   87 studies
Clubfoot   10 studies
Cluster Headache   13 studies
COACH Syndrome   1 study
Coal Worker's Pneumoconiosis   4 studies
Coats Disease   2 studies
Cocaine-Related Disorders   239 studies
Coccidioidomycosis   10 studies
Cockayne Syndrome   1 study
Cogan's Syndrome   1 study
Cognition Disorders   882 studies
Coin Lesion, Pulmonary   3 studies
Cold Agglutinin Disease   1 study
Colic   17 studies
Colitis   217 studies
Colitis, Collagenous   4 studies
Colitis, Ischemic   1 study
Colitis, Lymphocytic   3 studies
Colitis, Microscopic   6 studies
Colitis, Ulcerative   179 studies
Collagen Diseases   53 studies
Collagenous Colitis   4 studies
Colles' Fracture   8 studies
Coloboma   2 studies
Colonic Diseases   1556 studies
Colonic Diseases, Functional   124 studies
Colonic Neoplasms   241 studies
Colonic Polyps   28 studies
Colorectal Cancer, Hereditary Nonpolyposis, Type 1   11 studies
Colorectal Neoplasms   1378 studies
Colorectal Neoplasms, Hereditary Nonpolyposis   17 studies
Coma   25 studies
Combat Disorders   11 studies
Combined Hyperlipidemia, Familial   19 studies
Common Bile Duct Diseases   12 studies
Common Cold   22 studies
Common Variable Immunodeficiency   13 studies
Communication Disorders   94 studies
Community-Acquired Infections   9 studies
Compartment Syndromes   8 studies
Complete Atrioventricular Canal   3 studies
Complex Regional Pain Syndromes   30 studies
Compulsive Behavior   28 studies
Conduct Disorder   26 studies
Conductive Hearing Loss   2 studies
Condyloma   22 studies
Condyloma Acuminatum   22 studies
Condylomata Acuminata   22 studies
Cone Rod Dystrophy   35 studies
Confusion   84 studies
Congenital Abnormalities   1305 studies
Congenital Amegakaryocytic Thrombocytopenia   5 studies
Congenital Cardiovascular Malformations   1 study
Congenital Central Hypoventilation Syndrome   1 study
Congenital Cytomegalovirus   7 studies
Congenital Deafness   2 studies
Congenital Diaphragmatic Hernia   7 studies
Congenital Fiber Type Disproportion   1 study
Congenital Heart Block   3 studies
Congenital Heart Septum Defect   39 studies
Congenital Hemolytic Anemia   1 study
Congenital Hepatic Fibrosis   2 studies
Congenital Hypothyroidism   4 studies
Congenital Megacolon   3 studies
Congenital Torticollis   2 studies
Congenital Toxoplasmosis   1 study
Conjunctival Diseases   158 studies
Conjunctival Neoplasms   5 studies
Conjunctivitis   133 studies
Conjunctivitis, Allergic   63 studies
Conjunctivitis, Bacterial   30 studies
Conjunctivitis, Inclusion   2 studies
Conn's Syndrome   8 studies
Connective Tissue Diseases   1251 studies
Conotruncal Anomaly Face Syndrome   16 studies
Conotruncal Heart Malformations   2 studies
Consciousness Disorders   40 studies
Constipation   157 studies
Constriction, Pathologic   343 studies
Contracture   18 studies
Contusions   9 studies
Convalescence   3 studies
Conversion Disorder   6 studies
Corneal Diseases   130 studies
Corneal Dystrophies, Hereditary   12 studies
Corneal Dystrophy   12 studies
Corneal Dystrophy Fuchs' Endothelial 1   7 studies
Corneal Dystrophy, Epithelial Basement Membrane   1 study
Corneal Edema   8 studies
Corneal Neovascularization   10 studies
Corneal Opacity   6 studies
Corneal Ulcer   8 studies
Coronary Aneurysm   2 studies
Coronary Artery Aneurysm   2 studies
Coronary Artery Disease   1397 studies
Coronary Disease   1379 studies
Coronary Occlusion   25 studies
Coronary Restenosis   41 studies
Coronary Stenosis   74 studies
Coronary Thrombosis   7 studies
Coronary Vasospasm   4 studies
Corticobasal Degeneration   1 study
Cough   171 studies
Cowden's Disease   3 studies
Coxsackievirus Infections   4 studies
Craniocerebral Trauma   258 studies
Craniofacial Abnormalities   36 studies
Craniofrontonasal Dysplasia   1 study
Craniomandibular Disorders   20 studies
Craniopharyngioma   74 studies
Craniosynostoses   7 studies
Cretinism   4 studies
Creutzfeldt Jakob Disease   2 studies
Creutzfeldt-Jakob Syndrome   2 studies
Crigler Najjar Syndrome, Type 1   1 study
Crigler-Najjar Syndrome   1 study
Critical Illness   197 studies
Crohn Disease   274 studies
Crohn’s Disease, Pediatric   9 studies
Cross Infection   87 studies
Croup   3 studies
Cryoglobulinemia   2 studies
Cryptococcosis   31 studies
Cryptorchidism   4 studies
Cryptosporidiosis   19 studies
Cubital Tunnel Syndrome   1 study
Cumulative Trauma Disorders   36 studies
Currarino Triad   1 study
Cushing Syndrome   30 studies
Cutaneous Fistula   1 study
Cutaneous Lupus Erythematosus   15 studies
Cutaneous T-cell Lymphoma   365 studies
Cutis Laxa   4 studies
Cutis Verticis Gyrata   8 studies
Cyanosis   2 studies
Cyclic Vomiting Syndrome   6 studies
Cystadenocarcinoma, Serous   54 studies
Cystadenoma   1 study
Cystic Adenomatoid Malformation of Lung   2 studies
Cystic Adenomatoid Malformation of Lung, Congenital   2 studies
Cystic Fibrosis   286 studies
Cysticercosis   11 studies
Cystinosis   11 studies
Cystinuria   2 studies
Cystitis   54 studies
Cystitis, Interstitial   42 studies
Cystocele   496 studies
Cystosarcoma Phyllodes   2 studies
Cysts   146 studies
Cytomegalic Inclusion Disease   174 studies
Cytomegalovirus   180 studies
Cytomegalovirus Infections   180 studies
Cytomegalovirus Retinitis   60 studies