JohnSnowwasanEnglishphysicianandaleaderintheadoptionofa...
問題詳情：JohnSnowwasanEnglishphysicianandaleaderintheadoptionofanesthesia(*的)andmedicalhygiene(醫療衛生).Heisconsideredoneofthefathersofmodernepidemiology(傳染病),inpartbecauseofhisworkintracingthesou...