Of butterflies, madmen, and urban health: perspective from Canada.
Schechter
Martin T
MT
D002170:Canada; D002959:Civil Defense; D006292:Health Priorities; D006801:Humans; D009519:New York City; D011057:Politics; D011635:Public Health Administration; D012637:Security Measures; D023481:Terrorism / Q000517:prevention & control*; D014504:Urban Health