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.
Donnelly DW, Hegarty A, Sharp L, Carsin AE, Deady S, McCluskey N, Comber H, Gavin A. The impact of adjustment for socioeconomic status on comparisons of cancer incidence between two European countries. J Cancer Epidemiol. 2013 Jan 1;2013:612514. doi: 10.1155/2013/612514
Kovac AL, Pearman MH, Khalil SN, Scuderi PE, Joslyn AF, Prillaman BA, Cox F. Ondansetron prevents postoperative emesis in male outpatients.S3A-379 study group. J Clin Anesth. 1996 Dec;8(8):644-51. doi: 10.1016/s0952-8180(96)00173-0