The front cover shows five different morphology types of isolated human ovarian follicles stained with 4′ 6-diamidino-2-phenylindole +DAPI to show DNA. M1 = spherical form with complete granulosa cell layer, M2 = irregular form with complete granulosa cell layer, M3 = irregular form with <10% granulosa cell loss, M4a totally atypical form with 10–50% granulosa cell loss, M4b an extruded oocyte. See Domans et al., pages 413–420.
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