TY  - RPRT
TI  - Evaluating the validity of a research study.
AU  - G A Morgan
AU  - J A Gliner
AU  - R J Harmon
PY  - 1999
DO  - 10.1097/00004583-199904000-00023
UR  - https://pubmed.ncbi.nlm.nih.gov/10199122/
ID  - 10199122
ER  -