TY  - JOUR

T1  - Research methods: beyond the clinical trial.

JO  - Ann Emerg Med

PY  - 2003/07/01

AU  - Goodacre S

ED  - 

DO  - DOI: 10.1067/mem.2003.235

VL  - 42

IS  - 1

SP  - 56

EP  - 65

Y2  - 2024/10/19

ER  -