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Norsk selskap for hematologi: http://www.legeforeningen.no/index.gan?id=11480 Clinical Leaders of Thrombosis: http://www.clotuk.comSvensk forening for hamatologi: http://www.svls.se/sektioner/he/main.shtmlAtherothrombosis resource center: http://www.atherothrombosis.orgAmerican Society of Haematology: http://www.hematology.orgBritish Committee for Standards in Haematology: http://www.bcshguidelines.comEuropean Hematology Association: http://www.ehaweb.orgBlood: http://www.bloodjournal.orgNorsk tromboseforum: http://www.tromboseforum.no
