Geography of biomedical publications.
Rosselli
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D003431:Cross-Cultural Comparison; D003906:Developing Countries; D005062:European Union / Q000706:statistics & numerical data*; D005843:Geography; D006801:Humans; D016239:MEDLINE / Q000706:statistics & numerical data; D011643:Publishing / Q000706:statistics & numerical data*; D012106:Research / Q000706:statistics & numerical data*; D014481:United States