TY  - RPRT
TI  - Selection of control groups by using a commercial database and random digit dialing.
AU  - S H Olson
AU  - L Mignone
AU  - S Harlap
PY  - 2000
DO  - 10.1093/aje/152.6.585
UR  - https://pubmed.ncbi.nlm.nih.gov/10997549/
ID  - 10997549
ER  -