1. Cases of cerebral palsy in a series of mentally defective twins;Allen;American Journal of Mental Deficiency,1955
2. Frequency of mental retardation in twins;Allen;American Journal of Human Genetics,1955
3. Mental symptoms in temporal lobe epilepsy and temporal lobe gliomas with reference to laterality of lesion and the relationship between handedness and brainedness;Bingley;Acta Psychiatrica et Neurologica,1958
4. The biology of twinning in man;Bulmer,1970
5. Left-Handedness in twins: Incidence and patterns of performance in an adolescent sample;Carter-Saltzman;Behavior Genetics,1976