Radiology

Acute diverticulitis — Counseling and follow-up

Pathway

Calcium pyrophosphate deposition disease

Disease

CALISTO

Study

CAMERA

Study

CAMERA2 (original research)

Study

CAMERA2 (post-hoc analysis)

Study

Cancer-associated thrombosis

Disease

CANVAS (direct oral anticoagulants)

Study

CAP-China PCT-AECOPD

Study

CAPE COD

Study

CAPNOR

Study

CARES

Study

Carotid artery stenosis

Disease

CASSINI

Study

CASTING

Study

Catheter-related thrombosis

Disease

CATIS-2

Study

Cavernous malformations

Disease

CBT for Insomnia in Chronic Spinal Pain

Study

Celecoxib vs. diclofenac in arthritis with recent ulcer bleeding

Study

Celiac artery aneurysm

Disease

CENTURI

Study

Cerebral venous thrombosis

Disease

CERTAIN-1

Study

Cervical spine injury

Disease

CHANCE

Study

CHANCE-3

Study

CHARISMA

Study

CHARM (adalimumab every other week)

Study

CHARM (adalimumab every week)

Study

CHAT

Study

Chest pain

Disease

CHEST-1

Study

Chiari malformation

Disease

CHOICE (alteplase)

Study

Choledocholithiasis

Disease

Choledocholithiasis — Management

Pathway

Chronic limb-threatening ischemia

Disease

Chronic mesenteric ischemia

Disease

Chronic obstructive pulmonary disease

Disease

Chronic pancreatitis

Disease

Chronic rhinosinusitis

Disease

Chronic thromboembolic pulmonary hypertension

Disease

Chronic venous insufficiency

Disease

Ciprofloxacin for 7 vs. 14 days in pyelonephritis

Study

Clavicle fracture

Disease

CLOSURE I

Study

CLOT

Study

CMOSS

Study

CODA

Study

COGENT

Study

Colistin/sulbactam for CRAB pneumonia

Study

Colonic ischemia

Disease

COLOR (hand osteoarthritis)

Study

Community-acquired pneumonia

Disease

COMPASS-NCB

Study

Concussion

Disease

Congenital hydronephrosis

Disease

Constrictive pericarditis

Disease

Constrictive pericarditis — Investigation

Pathway

Constrictive pericarditis — Management

Pathway

Contrast-enhanced ultrasound of the liver

Disease

COORDINATE

Study

COPE

Study

CORAL

Study

CORP

Study

Corticosteroid injection for Achilles tendinopathy

Study

COVID-19-associated pulmonary mucormycosis

Disease

CPA (itraconazole)

Study

CRASH-2

Study

CRASH-3

Study

CREST

Study

Crohn's disease

Disease

Cryoneurolysis for Knee OA

Study

CRYOSTAT-2

Study

Cryptorchidism

Disease