Richard Passwater, Ph.D
"The cyano group of vitamin B-12 (cyano-cobal-amin) is more labile and potentially more harmful than the cyano group found in Laetrile. Yet we know how safe and essential vitamin B-12 is." - Dr. R.A. Passwater, testimony, FDA docket # 77N-0048.
Cancer Prevention & Nutritional Therapies (updated 1993)---Richard Passwater, Ph.D