@misc{indiciae4b2ae6548690, title = {Primary aging, secondary aging, and intelligence.}, author = {K Anstey and L Stankov and S Lord}, year = {1993}, doi = {10.1037//0882-7974.8.4.562}, url = {https://pubmed.ncbi.nlm.nih.gov/8292284/}, note = {Source identifier: 8292284} }