References
- Curnow , R. N. 1972 . “The Multifactorial Model for the Inheritance of Liability to Disease and Its Implications for Relatives at Risk” . Biometrics , 28 : 931 – 946 .
- Hutchinson , T. P. 1980 . “Approximating a Trivariate Normal Probability That Is of Special Relevance to the Multifactorial Model of Disease Transmission” . Annals of Human Genetics , 44 : 107 – 111 .