TY - JOUR A1 - Nilsson, A. A1 - Bonander, C. A1 - Stömberg, U. A1 - Björk, J. T1 - Can the validity of a cohort be improved by reweighting based on register data? Evidence from the Swedish MDC Study Y1 - 2020 DO - 10.1186/s12889-020-10004-z VL - 20 IS - 1918 ER -