title: Electron microscopic evidence for the presence of an acrosomal reaction in Ascaris lumbricoides var. suum.
mesh_terms: D000818:Animals; D001200:Ascaris / Q000166:cytology*; D007422:Intestines / Q000382:microbiology; D008297:Male; D008854:Microscopy, Electron; D013094:Spermatozoa / Q000166:cytology; D013552:Swine; D013553:Swine Diseases