@misc{indiciae600337d9e01b, title = {Panel studies and response set.}, author = {C N Katz and F M Katz}, year = {1967}, doi = {10.2466/pr0.1967.20.3.803}, url = {https://pubmed.ncbi.nlm.nih.gov/6042488/}, note = {Source identifier: 6042488} }