About: http://webisa.webdatacommons.org/2389761

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	Most accurately determined in women by the careful history of the menstrual cycle and its symptoms but additionally sometimes by tests such as serum progesterone levels in the last half of the cycle.
http://www.w3.org/ns/prov#wasQuotedFrom	utah.edu