@misc{indiciae5dfdde8f043a, title = {Genotype-environment correlation and IQ.}, author = {J C Loehlin and J C DeFries}, year = {1987}, doi = {10.1007/bf01065506}, url = {https://pubmed.ncbi.nlm.nih.gov/3632561/}, note = {Source identifier: 3632561} }