[The ultrastructure of the pineal body in the parakeet Melopsittacus undulatus with special reference to cellular types and their functions].
D000818:Animals; D008853:Microscopy; D008854:Microscopy, Electron; D010870:Pineal Gland / Q000033:anatomy & histology* / Q000166:cytology*; D011563:Psittaciformes / Q000033:anatomy & histology*