Fine structure of the reproductive system of a frog lung fluke. I. Mehlis' gland and associated ducts.
D000818:Animals; D001001:Anura; D008168:Lung / Q000382:microbiology; D008854:Microscopy, Electron; D014200:Trematoda / Q000166:cytology*; D014566:Urogenital System / Q000166:cytology*