TY  - RPRT
TI  - Research questions and hypotheses.
AU  - G A Morgan
AU  - R J Harmon
PY  - 2000
DO  - 10.1097/00004583-200002000-00028
UR  - https://pubmed.ncbi.nlm.nih.gov/10673839/
ID  - 10673839
ER  -