Nancy Walsh, Staff Writer. Leeches Can Transmit Resistant Bug, Case Study Shows. TodayMedPage, February 22, 2011.[1]Архивная копия от 25 февраля 2011 на Wayback Machine
Petrauskiene L. The medicinal leech as a convenient tool for water toxicity assessment // Environ Toxicol.. — 2004. — Вып. Aug;19(4):336-41.. — PMID15269904.
Nancy Walsh, Staff Writer. Leeches Can Transmit Resistant Bug, Case Study Shows. TodayMedPage, February 22, 2011.[1]Архивная копия от 25 февраля 2011 на Wayback Machine