TY - JOUR AU - Weberpals, Janick AU - Jansen, Lina AU - Silversmit, Geert AU - Verbeeck, Julie AU - van der Geest, Lydia AU - Vissers, Pauline AJ AU - Zadnik, Vesna AU - Brenner, Hermann TI - Comparative performance of a modified landmark approach when no time of treatment data are available within oncological databases: exemplary cohort study among resected pancreatic cancer patients JO - Clinical epidemiology VL - Volume 10 SN - 1179-1349 CY - Albany, Auckland PB - Dove Medical Press M1 - DKFZ-2018-01400 SP - 1109 - 1125 PY - 2018 LB - PUB:(DE-HGF)16 UR - <Go to ISI:>//WOS:000443166000001 C6 - pmid:30214315 DO - DOI:10.2147/CLEP.S160973 UR - https://inrepo02.dkfz.de/record/136971 ER -