title: Does the addition of erlotinib to gemcitabine improve outcome in patients with advanced pancreatic cancer?
authors: Charité School of Medicine, Department of Medical Oncology and Hematology, Campus Virchow-Klinikum, Berlin 13353, Germany. helmut.oettle@charite.de
authors: Helmut
authors: H
authors: Oettle
authors: Andreas
authors: A
authors: Hilbig