Larval immersion tests with ivermectin in populations of the cattle tick Rhipicephalus (Boophilus) microplus (Acari: Ixodidae) from State of Sao Paulo, Brazil - Klafke, Guilherme Marcondes; Sabatini, Gustavo Adolfo; Albuquerque, Thais A.; Martins, João Ricardo; Kemp, David H.; Miller, Robert J.; Schumaker, Teresinha Tizu Sato (Veterinary Parasitology, 2006)