@misc{indiciae494a7f0ebca0, title = {Longitudinal follow-up studies.}, author = {C Peckham and M L Newell}, year = {1994}, doi = {10.1111/j.1651-2227.1994.tb13341.x}, url = {https://pubmed.ncbi.nlm.nih.gov/7833568/}, note = {Source identifier: 7833568} }