The QuickTest software implements the statistical methods for uncertain (imputed) genotype association testing that were published in the article "Methods for testing association between uncertain genotypes and quantitative traits" in Biostatistics. Some documentation and example files are provided with the source code here. The code was originally written by Toby Johnson and Zoltán Kutalik, in the Computational Biology Group. The Vital-IT computational resource was provided by the Swiss Institute of Bioinformatics. Additional code was added by Alisa Manning and Han Chen at Boston University.