Cicinelli, E Effects of estrogen replacement therapy on plasma levels of nitric oxide in postmenopausal women. [electronic resource] - American journal of obstetrics and gynecology Feb 1999 - 334-9 p. digital Publication Type: Clinical Trial; Journal Article; Randomized Controlled Trial ISSN: 0002-9378 Standard No.: 10.1016/s0002-9378(99)70209-7 doi Subjects--Topical Terms: Administration, CutaneousCross-Over StudiesDouble-Blind MethodEstradiol--administration & dosageEstrogen Replacement TherapyFemaleHumansHysterectomyMiddle AgedNitric Oxide--bloodPlacebosPostmenopause--blood