TY  - RPRT
TI  - Evaluating health promotion is complex.
AU  - V Speller
AU  - A Learmonth
AU  - D Harrison
PY  - 1998
DO  - 10.1136/bmj.316.7142.1463
UR  - https://pubmed.ncbi.nlm.nih.gov/9572773/
ID  - 9572773
ER  -