<http://webisa.webdatacommons.org/426865608>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<researchgate.net> .
<http://webisa.webdatacommons.org/prov/64468388>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/426865608> .
<http://webisa.webdatacommons.org/426865608>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/426865608>	<http://www.w3.org/ns/prov#value>	"Open surgery and other combinations of treatments appear to be required for several subpopulations of PG patients." .