1. A leech in the nasal cavity: case report;Fooanant;Chiang Mai Med Bull,2006
2. Essentials of tropical infectious diseases;Guerrant,2001
3. Hunter's tropical medicine and emerging infectious disease;Stickland,2000
4. A nasopharyngeal mass: leech in the nasopharynx;Bilgen;Int J Pediatr Otorhinolaryngol,2002
5. Leeches, today and yesterday present parasites;Vera;Rev Chilena Infectol,2005