About: http://webisa.webdatacommons.org/313632777

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	Is this something to be concerned about?This condition, called secondary amenorrhea, can be caused by problems that affect estrogen levels, including stress, weight loss, exercise or illness.
http://www.w3.org/ns/prov#wasQuotedFrom	healthywomen.org