Tkatch R, Bazarko D, Musich S, Wu L, MacLeod S, Keown K, Hawkins K, Wicker E. A pilot online mindfulness intervention to decrease caregiver burden and improve psychological well-being. J Evid Based Complementary Altern Med. 2017 Oct;22(4):736-43. doi: 10.1177/2156587217737204
Groenwold R, Uddin M, Roes K, de Boer A, Rivero-Ferrer E, Martin E, Gatto N, Klungel O. Instrumental variable analysis in randomized trials with non-compliance and observational pharmacoepidemiologic studies. OA Epidemiology. 2014 May 9;2(1):9.
Fortuny J, Kogevinas M, Zens MS, Schned A, Andrew AS, Heaney J, Kelsey KT, Karagas MR. Analgesic and anti-inflammatory drug use and risk of bladder cancer: a population based case control study. BMC Urol. 2007 Aug 10;7:13. doi: 10.1186/1471-2490-7-13