Layton JB, Kim Y, Alexander GC, Emery SL. Association between direct-to-consumer advertising and testosterone testing and initiation in the United States, 2009-2013. JAMA. 2017 Mar 21;317(11):1159-66. doi: 10.1001/jama.2016.21041
Sorensen HT, Steffensen FH, Rothman KJ, Gillman MW, Fischer P, Sabroe S, Olsen J. Effect of home and hospital delivery on long-term cognitive function. Epidemiology. 2000 Jan 1;11(6):706-8.
Rothman KJ, Loughlin JE, Funch DP, Dreyer NA. Overall mortality of cellular telephone customers. Epidemiology. 1996 May 7;7(3):303-5.