TY  - RPRT
TI  - Separating identical from fraternal twins.
AU  - D J Cohen
AU  - E Dibble
AU  - J M Grawe
AU  - W Pollin
PY  - 1973
DO  - 10.1001/archpsyc.1973.04200040021004
UR  - https://pubmed.ncbi.nlm.nih.gov/4795884/
ID  - 4795884
ER  -