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
Chen XH, Rodríguez S, Hawe E, Talmud PJ, Miller GJ, Underhill P, Humphries SE, Day IN. Evidence of admixture from haplotyping in an epidemiological study of UK Caucasian males: implications for association analyses. Hum Hered. 2004;57(3):142-55.