TY  - RPRT
TI  - Biostatistics and study design for evidence-based practice.
AU  - T A Sheldon
PY  - 2001
DO  - 10.1097/00044067-200111000-00011
UR  - https://pubmed.ncbi.nlm.nih.gov/11759427/
ID  - 11759427
ER  -