I would imagine that this case will probably have a profound impact on all doctors responsible for patients with PA or B12D who ignore, either wilfully or through ignorance, the "standard medicines reference book for all doctors"..........
"Dr X has admitted he was in breach of his duty by failing to properly monitor his patient by arranging the full blood tests, recommended in the standard medicines reference book for all doctors. BBC News has established that Dr X is under investigation by the General Medical Council (GMC), which regulates the UK's doctors."