<http://webisa.webdatacommons.org/prov/313785874>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/393669284> .
<http://webisa.webdatacommons.org/393669284>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<patents.com> .
<http://webisa.webdatacommons.org/prov/321874149>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/393669284> .
<http://webisa.webdatacommons.org/393669284>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/393669284>	<http://www.w3.org/ns/prov#value>	"Such direct vascular blood sampling has several limitations, including pain, hematoma and other bleeding complications, and infection." .