--subdivision Surgery--Complications under individual diseases and types of diseases, individual organs and regions of the body, and classes of persons, e.g. Cancer--Surgery--Complications; Heart--Surgery--Complications; Pregnant women--Surgery--Complications
Intravenous drug abuse -- Health aspects -- United States. / https://id.loc.gov/authorities/subjects/sh90001084 https://id.loc.gov/authorities/subjects/sh00005598 https://id.loc.gov/authorities/names/n78095330-781 : Workshop on Needle Exchange and Bleach Distribution Programs
Intravenous drug abusers -- Diseases -- United States -- Statistics. / https://id.loc.gov/authorities/subjects/sh2005020055 https://id.loc.gov/authorities/subjects/sh99002330 https://id.loc.gov/authorities/names/n78095330-781 https://id.loc.gov/authorities/subjects/sh99001414