Haque R, Shi JM, Telford C, Avila C, Alvarado M, Tiller GE, Dalvi T, Gutierrez L, Tyczynski J, Kaye JA. Survival outcomes in BRCA1 or BRCA2 mutation carriers and the influence of triple-negative breast cancer subtype. Perm J. 2018 Oct 11;22:17-197. doi: 10.7812/TPP/17-197
Gold R, Esterberg E, Hollombe C, Arkind J, Vakarcs PA, Tran H, Burdick T, Devoe JE, Horberg MA. Low back imaging when not indicated: a descriptive cross-system analysis. Perm J. 2016;20(2):25-33. doi: 10.7812/TPP/15-08
Cueto HT, Riis AH, Hatch EE, Wise LA, Rothman KJ, Sørensen HT, Mikkelsen EM. Folic acid supplementation and fecundability: a Danish prospective cohort study. Eur J Clin Nutr. 2016 Jan;70(1):66-71. doi: 10.1038/ejcn.2015.94
Parsley (Edwards) TL. Review of the phantom respondents: opinion surveys and political representation. J Off Stat. 1994;10(3):351-5.