Shift work in nurses: contribution of phenotypes and genotypes to adaptation.
Gamble KL, Motsinger-Reif AA, Hida A, Borsetti HM, Servick SV, Ciarleglio CM, Robbins S, Hicks J, Carver K, Hamilton N, et al. PLoS One. 2011 Apr 13; 6(4):e18395. Epub 2011 Apr 13.