Primate Research
Tlaxcaltecans
Black Caribs
Irish Populations
Mennonite Aging
Newfoundland
Arctic & New World
Tiszahat Populations
Populations of India
Miscellaneous
Comments & Editorials
Book Reviews

Ziegler, D.K., D. Kennedy, R. Barter, J. Kueser and M.H. Crawford 1994 Concordance of headache phenomena in twins. In: New Advances in Headache Research 3 (F.C. Rose, ed.) London: Smith Gordon.

Cates, D.S., B.K. Houston, C.R. Vavak, M.H. Crawford and M. Uttley 1993 Heritability of hostility-related emotions, attitudes and behaviors. Journal of Behavioral Medicine 16 (3): 237-256.

Przybyla, B.D., Y. Horii, and M.H. Crawford 1992 Vocal fundamental frequency in a twin sample: Looking for a genetic effect. Journal of Voice 6 (3): 261-266.