@misc{indiciaef3e3a47da5c1, title = {Prevalence proportion ratios: estimation and hypothesis testing.}, author = {T Skov and J Deddens and M R Petersen and L Endahl}, year = {1998}, doi = {10.1093/ije/27.1.91}, url = {https://pubmed.ncbi.nlm.nih.gov/9563700/}, note = {Source identifier: 9563700} }