TY  - RPRT
TI  - Re: "A method for combining matched and unmatched binary data: application to randomized, controlled trials of photocoagulation in the treatment of diabetic retinopathy".
AU  - S Greenland
PY  - 1990
DO  - 10.1093/oxfordjournals.aje.a115635
UR  - https://pubmed.ncbi.nlm.nih.gov/2192550/
ID  - 2192550
ER  -