TY  - RPRT
TI  - Less expensive is not always less effective.
AU  - G Schumock
AU  - K Witte
PY  - 1990
DO  - 10.1001/archinte.150.11.2420a
UR  - https://pubmed.ncbi.nlm.nih.gov/2241463/
ID  - 2241463
ER  -