... (IF) [3,5] and may be cited more often than negative studies [6,7]; 3) null papers are typically given low publication priority scores and may not be accepted for publication [2], we hypothesized ... and lung malig-nancy) SNPs for GST polymorphisms were used as a substrate for analyses. Materials and Methods Search strategy and eligibility criteria We electronically searched the PubMed ... polymorphisms of GSTT1, GSTM1, and GSTP1 in familial versus sporadic breast can-cer susceptibility and survival. Fam Cancer. 2008;7:213-20 78. Yang G, Shu XO, Ruan ZX, Cai QY, Jin F, Gao YT,...