@misc{indiciaed4c061712aaa, title = {Statistics notebook: entry IV.C: chi 2 tests.}, author = {P N De Land and W W Chase}, year = {1995}, doi = {10.1097/00006324-199501000-00008}, url = {https://pubmed.ncbi.nlm.nih.gov/7731655/}, note = {Source identifier: 7731655} }