Kume, T Studies on the nurse cells and oogenesis in the sea urchin ovary. I. Morphology of the nurse cell (light microscopy of epon serial section). [electronic resource] - Medical journal of Osaka University Mar 1978 - 173-82 p. digital Publication Type: Journal Article ISSN: 0030-6169 Subjects--Topical Terms: AnimalsFemaleMicrotomyOogenesisOvary--cytologySea Urchins--anatomy & histology