TY  - RPRT
TI  - Answers to complex questions cannot be derived from 'simple' trials.
AU  - O Jolobe
PY  - 1993
DO  - 10.1136/hrt.69.3.276
UR  - https://pubmed.ncbi.nlm.nih.gov/8461233/
ID  - 8461233
ER  -