4位“白衣天使”，组建死亡姐妹团，6年送走数百人，奥地利最骇人听闻的案件 | 奇闻观察室

死亡姐妹团的罪恶

参考资料：
https://www.happyscribe.com/public/medical-murders/the-lainz-angels-of-death
https://cattstruecrimecorner.com/lainz-angels-of-death/
https://vocal.media/criminal/the-lainz-angels-of-death
https://thoughtcatalog.com/jim-goad/2020/01/killer-nurses-20-caregivers-who-murdered-their-patients/ 
https://skdb.fandom.com/wiki/WAGNER_Waltraud
https://de.wikipedia.org/wiki/Todesengel_von_Lainz
https://murderpedia.org/female.W/w/wagner-waltraud.htm
https://zh.wikipedia.org/zh-hant/兰兹的死亡天使
https://web.archive.org/web/20140403055218/http://www.crimelibrary.com/notorious_murders/angels/female_nurses/6.html
https://www.diepresse.com/5606709/lainzer-mordserie-jetzt-ist-es-aus-mit-der-schwarzwaldklinik
https://www.krone.at/400569
https://www.youtube.com/watch?v=TbW8ymZGcY0