About: http://webisa.webdatacommons.org/252259109

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	This is at best a rough measure, but more accurate indicators, such as inpatient days and number and kinds of surgical procedures, were not available for the period in question.
http://www.w3.org/ns/prov#wasQuotedFrom	annals.org