@misc{indiciae70bca33d55f5, title = {A practical approach to content validation.}, author = {E M Slocumb and F L Cole}, year = {1991}, doi = {10.1016/s0897-1897(05)80097-7}, url = {https://pubmed.ncbi.nlm.nih.gov/1772253/}, note = {Source identifier: 1772253} }