1. Retroperitoneal Leiomyosarcoma Associated with an Elevated β-HCG Serum Level Mimicking Extragonadal Germ Cell Tumor. (2000) Authors: Froehner, Michael; Gaertner, Hans-Juergen; Manseck, Andreas; Oehlschlaeger, Sven; Wirth, Manfred P. Journal: Sarcoma Issue: Volume 4:Number 4(2000) Page Start: 179 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗