TY  - RPRT
TI  - Twin study using mortality data: a new sampling method.
AU  - A J Graham
AU  - C H Hawkes
PY  - 1995
DO  - 10.1093/ije/24.4.758
UR  - https://pubmed.ncbi.nlm.nih.gov/8550273/
ID  - 8550273
ER  -