Franklin JM, Dejene S, Huybrechts KF, Wang SV, Kulldorff M, Rothman KJ. A bias in the evaluation of bias comparing randomized trials with nonexperimental studies. Epidemiol Methods. 2017 Apr;6(1):20160018.. doi: 10.1515/em-2016-0018.
Juliao PC, Sosa S, Gonzalez LD, Padilla N, Ortiz L, Goldman I, Udhayakumar V, Lindblade KA. Importation of chloroquine-resistant plasmodium falciparum by Guatemalan peacekeepers returning from the Democratic Republic of the Congo. Malar J. 2013 Sep 23;12:344. doi: 10.1186/1475-2875-12-344