Genetic variations and adverse reactions to drugs as a result were well documented by the 1950's - MASH even had an episode about it: https://mash.fandom.com/wi

Genetic variations and adverse reactions to drugs as a result were well documented by the 1950's - MASH even had an episode about it: https://mash.fandom.com/wiki/The_Red/White_Blues_(TV_series_episode) https://mash.fandom.com/wiki/The_Red/White_Blues_(TV_series_...