The effect of host resistance on the development of the vulval flap in Ostertagia ostertagi.
D000305:Adrenal Cortex Hormones / Q000494:pharmacology; D000818:Animals; D002417:Cattle; D004463:Ecology; D005260:Female; D007109:Immunity; D014251:Trichostrongyloidea; D014844:Vulva / Q000033:anatomy & histology
D000305:Adrenal Cortex Hormones