All Special collections articles from the BMJ

Practice: Ordering and interpreting hepatitis B serology

Endgames: Treatment allocation in trials: cluster randomisation

Clinical Review: First seizures in adults

Endgames: A patient with rheumatoid arthritis, cryoglobulinaemia, and an “accidental” finding

Clinical Review: Anticoagulation in atrial fibrillation

Endgames: A man with a mass in the thigh

Endgames: What is an “n-of-1” trial?

Endgames: Non-response bias versus response bias

Endgames: Coronal T2 weighted magnetic resonance image of the brain

Endgames: Radiograph of a 3 year old child’s right foot