About: http://webisa.webdatacommons.org/167298074

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	Weight-loss surgery can make it hard for your body to absorb some nutrients, such as folic acid, calcium, vitamin B12, and iron.
http://www.w3.org/ns/prov#wasQuotedFrom	sutterhealth.org