1. Andreasen NC, Rice J, Endicott J, Reich T, Coryell W (1986) The family history approach to diagnosis. Arch Gen Psychiatry 43: 421–429
2. American Psychiatric Association (1987) Diagnostic and statistic manual of mental disorders, 3rd ed, revised. APA, Washington DC
3. Allen G (1979) Holzinger’s Hc revised. Acta Genet Med Gemellol 28: 161–164
4. Erdmann J, Nöthen M, Stratmann M, Fimmers R, Franzek E, Propping P (1993) The use of microsatellites in zygosity diagnosis of twins. Acta Genet Med Gemellol 42: 45–51
5. Gayle HD, Yip R, Frank MJ, Nieburg P, Binkin NJ (1988) Validation of maternally reported birth weights among 46637 Tennessee WIC program participants. Public Health Reports 103: 143–146