TY  - RPRT
TI  - Analyzing comorbidity.
AU  - Bruce F Pennington
AU  - Erik Willcutt
AU  - Soo Hyun Rhee
PY  - 2005
DO  - 10.1016/s0065-2407(05)80010-2
UR  - https://pubmed.ncbi.nlm.nih.gov/16101120/
ID  - 16101120
ER  -