C M Plymen cardiology specialist registrar, G S Carr-White consultant cardiologist, S Kapetanakis consultant cardiologist
Plymen C M, Carr-White G S, Kapetanakis S.
The Christmas tree sign: a diagnostic tool for ECG connoisseurs
BMJ 2014; 349 :g7342
doi:10.1136/bmj.g7342