TY  - RPRT
TI  - The risks confronting twins: a national perspective.
AU  - W F Powers
AU  - J L Kiely
PY  - 1994
DO  - 10.1016/s0002-9378(94)70211-x
UR  - https://pubmed.ncbi.nlm.nih.gov/8116697/
ID  - 8116697
ER  -