TY  - RPRT
TI  - Qualitative methods for intervention research.
AU  - C Needleman
AU  - M L Needleman
PY  - 1996
DO  - 10.1002/(sici)1097-0274(199604)29:4<329::aid-ajim10>3.0.co;2-3
UR  - https://pubmed.ncbi.nlm.nih.gov/8728134/
ID  - 8728134
ER  -