[Collection and classification of human oocytes in gynaecological operations (author's transl)]

A total of 131 ovarian follicles was punctured in 27 gynaecological operations, none of them with pretreatment. Seventy eight oocytes were collected and classified by three categories, pre-ovulatory (twelve = 15.4 per cent), non-ovulatory (39 = 50.0 per cent), and degenerated (27 = 34.6 per cent). The findings thus obtained did not differ from Kubo's data. His patients had received folliculostimulating pretreatment.