Hickman was the first to prove that the pain of surgical operations could be abolished by the inhalation of a gas. He rendered animals unconscious, first through partial asphyxiation by the exclusion of air, then by i…
Hickman was the first to prove that the pain of surgical operations could be abolished by the inhalation of a gas. He rendered animals unconscious, first through partial asphyxiation by the exclusion of air, then by i…