title: Limitations of the application of fourfold table analysis to hospital data.
authors.affiliation: Division of Biometry and Medical Statistics, Mayo Clinic, Rochester, USA.
authors.forename: Joseph
authors.initials: J
authors.lastname: Berkson
mesh_terms: D001699:Biometry; D035061:Control Groups; D006753:Hospital Records / Q000706:statistics & numerical data*; D011336:Probability; D013223:Statistics as Topic