to examine the effects of sex-hormones on lipids , lipoproteins and coagulation in the normal menstrual cycle 37 women had blood samples taken early in the follicular phase ( low estrogen ) at the midcycle ( high estrogen ) and late in the luteal phase ( high estrogen and high progesterone ) under the best possible uniform and basal conditions .
C0023779
lipids
C0023820
lipoproteins