TY  - RPRT
TI  - Analysis of return visits.
AU  - H Ovens
AU  - B Goldman
PY  - 1990
DO  - 10.1016/s0196-0644(05)82061-x
UR  - https://pubmed.ncbi.nlm.nih.gov/2310077/
ID  - 2310077
ER  -