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.
Watts (Wideman) K, McAvinchey G, Quiroz R. Language services in survey research. ATA Chronicle. 2002 Jul;31(7):36-7.