the mitotic rate of breast cells is higher during the luteal phase of the menstrual cycle than during the follicular phase , suggesting either that progesterone and oestrogen together induce more mitoses than oestrogen alone ( the 'oestrogen plus progestagen hypothesis ' ) or that oestrogen alone induces breast cell mitoses in a dose-dependent manner and that progesterone has no effect ( the 'oestrogen alone hypothesis ' ) .
C0007634
the
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mitoses