title: Histochemical observations of the testis of frog, Rana pipiens. Short communication.
mesh_terms: D000818:Animals; D001001:Anura; D002784:Cholesterol / Q000378:metabolism; D007985:Leydig Cells; D050356:Lipid Metabolism; D008297:Male; D010743:Phospholipids / Q000378:metabolism; D011894:Rana pipiens / Q000033:anatomy & histology*; D012621:Seasons; D012708:Sertoli Cells / Q000166:cytology; D013094:Spermatozoa; D013737:Testis / Q000166:cytology*; D013997:Time Factors; D014280:Triglycerides / Q000378:metabolism
chemical_list: D010743:Phospholipids; D014280:Triglycerides; D002784:Cholesterol