@misc{indiciae4f1e7b77078f, title = {On relationships between longitudinal characteristics and cross-sectional data.}, author = {J A Menken and M C Sheps}, year = {1970}, doi = {10.2105/ajph.60.8.1506}, url = {https://pubmed.ncbi.nlm.nih.gov/5465462/}, note = {Source identifier: 5465462} }