Thanks to the P.A.S.! I have been able to educate a dear, ill friend about b12d. His health has been deteriorating badly for 2-3 years, he has almost every symptom of the deficiency and was fading away. He has seen Neurologists and had an MRI scan but got nowhere. I am b12d myself and I passed on all my knowledge and nagged him to ask for tests. After months of doctors treating him like a pain in the wotsit, a Neurologist ordered the relevant tests and guess what! His levels are worryingly low. He is now being referred to a Haematologist, who will probably be surprised that with levels so low my friend is still alive! He is now grateful for my nagging and I, in turn, am grateful to the P.A.S. for the knowledge I have gained. The outlook is now a little brighter!