TY - RPRT TI - Method for indirectly estimating gene-environment effect modification and power given only genotype frequency and odds ratio of environmental exposure. AU - Jimmy Thomas Efird PY - 2005 DO - 10.1007/s10654-005-2018-3 UR - https://pubmed.ncbi.nlm.nih.gov/16080585/ ID - 16080585 ER -