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Lindberg, D.A.B.; Humphreys, B.L.: ¬The UMLS project : making the conceptual connection between users and the information they need (1993)
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Nelson, S.J.; Powell, T.; Srinivasan, S.; Humphreys, B.L.: Unified Medical Language System® (UMLS®) Project (2009)
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Raeder, A.: Gophering through GopherSpace (1994)
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McCray, A.T.; Nelson, S.J.: ¬The representation of meaning in the UMLS (1995)
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Na, J.-C.; Neoh, H.L.: Effectiveness of UMLS semantic network as a seed ontology for building a medical domain ontology (2008)
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