TY  - RPRT
TI  - Analytic approaches to twin data using structural equation models.
AU  - Frühling V Rijsdijk
AU  - Pak C Sham
PY  - 2002
DO  - 10.1093/bib/3.2.119
UR  - https://pubmed.ncbi.nlm.nih.gov/12139432/
ID  - 12139432
ER  -