title: Ultrastructure of the developing thymus of the leopard frog (Rana pipiens).
mesh_terms: D000367:Age Factors; D000818:Animals; D001001:Anura; D002454:Cell Differentiation; D003594:Cytoplasmic Granules; D003896:Desmosomes; D004721:Endoplasmic Reticulum; D004847:Epithelial Cells; D006056:Golgi Apparatus; D002479:Inclusion Bodies; D007814:Larva / Q000166:cytology; D008214:Lymphocytes / Q000166:cytology; D008854:Microscopy, Electron; D008870:Microtubules; D008928:Mitochondria; D008938:Mitosis; D009132:Muscles / Q000166:cytology; D011894:Rana pipiens / Q000196:embryology*; D013950:Thymus Gland / Q000166:cytology / Q000196:embryology*