postmenopausal episodes characterised by hot flashes , amenorrhoea , high fsh levels ( greater than or equal to 5iu/l ) and low urinary oestrogens ( less than or equal to 50 nmol/24hr ) , were followed by menstrual cycles in which the fsh levels were low ( less than 5 iu/l ) and there was an ovulatory pattern of oestrogen and pregnanediol excretion .
C0600142
hot flashes
C0014939
oestrogen