L. Stephan

Maintenance treatment with medroxyprogesterone acetate in patients with advanced breast cancer responding to chemotherapy: results of a randomized trial

S. Seeber, R. Becher, C. Oberhoff, 1999, Breast Cancer Research and Treatment.

Short-term outcome after posterior versus lateral surgical approach for total hip arthroplasty - a randomized clinical trial*

F. Krummenauer, K. Günther, W. Witzleb, 2009, European Journal of Medical Research.