TY  - RPRT
TI  - Concept advancement: enhancing inductive validity.
AU  - Judith E Hupcey
AU  - Janice Penrod
PY  - 2003
DO  - 10.1891/rtnp.17.1.19.53168
UR  - https://pubmed.ncbi.nlm.nih.gov/12751883/
ID  - 12751883
ER  -