History of LSD in Czechoslovakia
There's a fantastic interview with Stanislav Grof, who supervised roughly 4500 LSD sessions starting in Czechoslovakia, here: [1]His intelligence, knowledge and keenness of mind is truly impressive, especially considering his advanced age.  This interview is highly recommended to anyone with an interest in this subject.[1] - https://www.youtube.com/watch?v=3mdYUmvTeig