Torbjörn Bäckström
Department of Clinical Science, Obstetrics and Gynecology, Umeå University, Umeå, Sweden
Dr.Torbjorn Backstorm is currently working in the Department of Clinical Science, Obstetrics and Gynecology, Umeå University, Umeå, Sweden
Diurnal variations; Circadian rhythm; Endogenous steroids; Allopregnanolone; Menstrual cycle; Women