About: http://webisa.webdatacommons.org/283387243

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	The relationship to smoking has never been established clearly, but the habit may influence the levels of several hormones involved in the menstrual cycle, such as estrogen and progesterone.
http://www.w3.org/ns/prov#wasQuotedFrom	lifescript.com