TY - RPRT TI - Epistasis in quantitative trait locus linkage analysis: interaction or main effect? AU - Shaun Purcell AU - Pak C Sham PY - 2004 DO - 10.1023/b:bege.0000013728.96408.f9 UR - https://pubmed.ncbi.nlm.nih.gov/14755179/ ID - 14755179 ER -