Costa HM de A, Leite ACR, Costa JO, Guimarães MP. Effect of worm burden on female to male ratio and epg in parasitism by ancylostoma caninum. Rev. Inst. Med. Trop. São Paulo. 1979;21(2):67-71. Accessed June 26, 2024. https://revistas.usp.br/rimtsp/article/view/197394