For example, a breast cancer susceptibility GWAS investigating breast cancer risk identified the SNP rs11571833 in BRCA2 with p value of \documentclass[12pt]{minimal}\usepackage{amsmath}\usepackage{wasysym}\usepackage{amsfonts}\usepackage{amssymb}\usepackage{amsbsy}\usepackage{mathrsfs}\usepackage{upgreek}\setlength{\oddsidemargin}{-69pt}\begin{document}$$2\times 10^{-6}$$\end{document}2×10-6. This evidence concerns the gene BRCA2 and breast cancer.