TY  - RPRT
TI  - Old Parr: or how old is old?
AU  - B P Doughty
PY  - 1988
DO  - 10.1097/00007611-198807000-00023
UR  - https://pubmed.ncbi.nlm.nih.gov/3293237/
ID  - 3293237
ER  -