1. Headache frequency and intensity in female migraineurs using desogestrel-only contraception: A retrospective pilot diary study. (April 2013) Authors: Merki-Feld, Gabriele S; Imthurn, Bruno; Langner, Ronald; Sándor, Peter S; Gantenbein, Andreas R Journal: Cephalalgia Issue: Volume 33:Number 5(2013) Page Start: 340 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗