TY  - RPRT
TI  - Was the study big enough? Two café rules.
AU  - Paul Glasziou
AU  - Helen Doll
PY  - 2006
DO  - 10.1136/ebm.11.3.69
UR  - https://pubmed.ncbi.nlm.nih.gov/17213093/
ID  - 17213093
ER  -