Variation in the character and use of Chicago area hospitals.
D000704:Analysis of Variance; D002641:Chicago; D003710:Demography; D006276:Health Facility Size; D006748:Hospital Departments; D006752:Hospital Planning; D006761:Hospitals / Q000706:statistics & numerical data; D006784:Hospitals, Teaching / Q000706:statistics & numerical data; D008962:Models, Theoretical; D012111:Residence Characteristics; D012959:Socioeconomic Factors; D013223:Statistics as Topic