Anderson IM, Jones S, Twiss J. Do negative cognitive style and personality predict depression symptoms and functional outcomes in severe bipolar and unipolar disorders? Int J Cogn Ther. 2009 Dec 15;2(4):343-53. doi: 10.1521/ijct.2009.2.4.343
Michels KB, Rothman KJ. Update on unethical use of placebos in randomised trials. Bioethics. 2003 Apr;17(2):188-204.
Ennett ST, Bauman KE, Foshee VA, Pemberton M, Hicks KA. Parent-child communication about adolescent tobacco and alcohol use: what do parents say and does it affect youth behavior? J Marriage Fam. 2001 Feb 1;63(1):48-62.