We acknowledge the GIANT consortium for providing us access to the height SNPs. We also acknowledge Joel Hirschhorn, X. Shirley Liu, Mark Daly, Tonu Esko, Dorothee Diogo, and Joshua Randall for helpful scientific discussions. This work was supported by funding from the NIH (NIAMS-1R01AR063759 [S.R.], 1UH2AR067677-01 [S.R.], 1U19AI111224-01 [S.R.], and NHGRI-1U01HG0070033 [R.J.K.]), a Doris Duke Clinical Scientist Development Award (S.R.), the Rubicon grant from the Netherlands Organization for Scientific Research (G.T.), and the Wellcome Trust Sanger Institute (WT098051 [G.T.]).