<http://webisa.webdatacommons.org/328073119>	<http://www.w3.org/ns/prov#value>	"0.5-2 mg 2.4 Monitoring to Achieve Optimal Anticoagulation COUMADIN is a narrow therapeutic range (index) drug, and its action may be affected by factors such as other drugs and dietary vitamin K. Therefore, anticoagulation must be carefully monitored during COUMADIN therapy." .
<http://webisa.webdatacommons.org/328073119>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<nih.gov> .
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<http://webisa.webdatacommons.org/328073119>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .