About: http://webisa.webdatacommons.org/407285994

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 authors conclude that there is a need to intensify reproductive research to identify relevant factors and conduct placebo-controlled trials to clarify whether vitamin D supplements are beneficial for infertile men.
http://www.w3.org/ns/prov#wasQuotedFrom	sciencedaily.com