Safety and tolerability of testosterone patch therapy for up to 4 years in surgically menopausal women receiving oral or transdermal oestrogen - abstr

Serum testosterone levels measured by isotope dilution-liquid chromatography-tandem mass spectrometry in postmenopausal women versus those in women who underwent bilateral oophorectomy

abstract: "A significant decrease was found in testosterone concentrations before and after bilateral oophorectomy, whereas no significant difference was found before and after natural menopause."