TY  - RPRT
TI  - Study designs and their potential influence on conclusions.
AU  - Lynda Anne Szczech
AU  - Joseph A Coladonato
AU  - William F Owen
DO  - 10.1046/j.1525-139x.2002.00055.x
UR  - https://pubmed.ncbi.nlm.nih.gov/12100461/
ID  - 12100461
ER  -