Nederhof, A J2015-03-192015-03-192015-03-19http://hdl.handle.net/10263/6070International conference on Informetrics : Theory of Informetrics (3rd. : 1991 Aug. 9-12 : Bangalore). Rao, I.K. Ravichandra(Ed.).enPulmonery diseasesDelimitationMedical research topicDelimitation of a medical research topic : a comparison of online databasesPresentation