Hi all, Here are some slides about reference allele bias corrections in mapping for the Geuvadis analysis group TC that will be in 10 minutes. best regards, Tuuli -- Tuuli Lappalainen, PhD Department of Genetic Medicine and Development University of Geneva Medical School CMU / Rue Michel-Servet 1 1211 Geneva 4 Switzerland Tel. +41-(0)22-3795550 tuuli.lappalainen(a)unige.ch