Maintenance work on the ZORA databases is scheduled for Wednesday 22 May 2019 from 20:00-22:00. During this period ZORA and JDB will not be available. Thank you for your understanding.
Egger, Mattias; Twisselmann, Wiebke; Ledergerber, Bruno (1995). Differences in progression of HIV infection between men and women. BMJ : British medical journal, 310(6984):941.