TY  - RPRT
TI  - Help available--phenomenological models for research on aging.
AU  - Arnold Mitnitski
AU  - Kenneth Rockwood
PY  - 2003
DO  - 10.1126/sageke.2003.12.vp2
UR  - https://pubmed.ncbi.nlm.nih.gov/12844517/
ID  - 12844517
ER  -