@misc{indiciae1d4c6c39da61, title = {The "case-control" study: valid selection of subjects.}, author = {O S Miettinen}, year = {1985}, doi = {10.1016/0021-9681(85)90039-6}, url = {https://pubmed.ncbi.nlm.nih.gov/4008595/}, note = {Source identifier: 4008595} }