1. Macro-B12 masking B12 deficiency. Issue 1 (13th January 2022) Authors: Wolffenbuttel, Bruce H R; Muller Kobold, Anneke C; Sobczyńska‐Malefora, Agata; Harrington, Dominic J Journal: BMJ case reports Issue: Volume 15:Issue 1(2022) Page Start: Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗