About: http://webisa.webdatacommons.org/77657994

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	Voice changes If amenorrhea is caused by a pituitary tumor, there may be other symptoms related to the tumor, such as vision loss and headache .
http://www.w3.org/ns/prov#wasQuotedFrom	erlanger.org