About: http://webisa.webdatacommons.org/433722023

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	Dietary supplements that contain only vitamin B12, or vitamin B12 with nutrients such as folic acid and other B vitamins, are also available.
http://www.w3.org/ns/prov#wasQuotedFrom	nih.gov