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<http://webisa.webdatacommons.org/161583797>	<http://www.w3.org/ns/prov#value>	"At each annual visit, participants are surveyed about psychosocial issues, such as quality of life, depression, stress, social support and life events." .
<http://webisa.webdatacommons.org/161583797>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<swanstudy.org> .
<http://webisa.webdatacommons.org/prov/475308400>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/161583797> .
<http://webisa.webdatacommons.org/161583797>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .