<http://webisa.webdatacommons.org/434376101>	<http://www.w3.org/ns/prov#value>	"However, factors such as risk of radiation exposure, shortage of helium and technetium-99m, high cost of diagnostic systems, and technological limitations associated with standalone systems are restraining this market." .
<http://webisa.webdatacommons.org/prov/254607210>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/434376101> .
<http://webisa.webdatacommons.org/prov/220019569>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/434376101> .
<http://webisa.webdatacommons.org/434376101>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<sys-con.com> .
<http://webisa.webdatacommons.org/434376101>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .