TY  - RPRT
TI  - The research design.
AU  - D Schantz
AU  - C A Lindeman
PY  - 1982
DO  - 10.1097/00005110-198202000-00007
UR  - https://pubmed.ncbi.nlm.nih.gov/6916781/
ID  - 6916781
ER  -