TY  - RPRT
TI  - Retaining and tracking cohort study members.
AU  - J R Hunt
AU  - E White
PY  - 1998
DO  - 10.1093/oxfordjournals.epirev.a017972
UR  - https://pubmed.ncbi.nlm.nih.gov/9762509/
ID  - 9762509
ER  -