1. Christian, J. C., and Norton, J. A. (1975). Statistical analysis of genetic variance in twins.Am. J. Hum. Genet. 27:807.
2. Christian, J. C., Kang, K. W., and Norton, J. A. (1974). Choice of an estimate of genetic variance from twin data.Am. J. Hum. Genet. 26:154.
3. Epstein, L. M., Reshef, A., Abrahamson, J. H., and Bialik, O. (1970). Validity of a short dietary questionnaire.Israel J. Med. Sci. 6:589.
4. Faust, J. (1974). A twin study of personal preferences.J. Biosoc. Sci. 6:75.
5. Feinleib, M., Christian, J. C., Borhani, N. O.,et al. (1977). The NHLI twin study of cardiovascular disease risk factors: Organization and methodology.Acta Genet. Med. Gemellol. (in press).