A similar theme may have pervaded the murders of Dr.Michael Swango, an American physician convicted of murders by deliberate overdose in New York and Ohio hospitals.

• 同样的手法存在于另一个杀手迈克尔.；旺戈身上，他是美国的内科医师，被控告在纽约和俄亥俄医院涉嫌故意过量配药。