TY - RPRT TI - A computer program to estimate power and relative efficiency to assess multiplicative interactions in flexibly matched case-control studies. AU - T Stürmer AU - O Gefeller AU - H Brenner PY - 2004 DO - 10.1016/j.cmpb.2003.08.003 UR - https://pubmed.ncbi.nlm.nih.gov/15135577/ ID - 15135577 ER -