610 - Medicine & health 800 - Literature & rhetoric 900 - History & geography 49 700 - The arts; fine & decorative arts 36 000 - Computer science, information & general works 25 140 - Specific philosophical schools 25 more ... 363 - Other social problems & services 25 333 - Economics of land & energy 22 600 - Technology 18 580 - Plants (Botany) 17 330 - Economics 15 100 - Philosophy & psychology 14 380 - Commerce, communications & transportation 14 620 - Engineering & allied operations 9 300 - Social sciences 8 370 - Education 8 500 - Natural sciences & mathematics 8 551 - Geology, hydrology & meteorology 8 304 - Factors affecting social behavior 7 320 - Political science 7 340 - Law 7 720 - Architecture 7 297 - Islam, Babism & Bahai Faith 6 576 - Genetics & evolution 6 630 - Agriculture & related technologies 6 581 - Specific topics in natural history 5 200 - Religion 4 520 - Astronomy & allied sciences 4 170 - Ethics 3 301 - Sociology & anthropology 3 400 - Language 3 410 - Linguistics 3 414 - Phonology & phonetics 3 658 - General management 3 780 - Music 3 540 - Chemistry & allied sciences 2 615 - Pharmacology & therapeutics 2 120 - Epistemology, causation & humankind 1 160 - Logic 1 364 - Criminology 1 590 - Animals (Zoology) 1 612 - Human physiology 1 791 - Public performances 1 809 - History, description & criticism 1 830 - Literatures of Germanic languages 1 880 - Hellenic literatures; classical Greek 1 920 - Biography, genealogy & insignia 1 see all ... less ...

English 92 Arabic 7 German 7 Portuguese 1

Directory of Open Access Books 74 National Center for Biotechnology Information 25 Digi20 7 OAPEN 6

United States Agency for Healthcare Research and Quality 11 Coyer, Megan J. 6 Gelder, Geert Jan 5 Savage-Smith, Emilie 5 Swain, Simon 5 Hartling, Lisa 4 more ... Scientific Resource Center (Portland, Or.) 4 Skinner, Patricia 3 Adam, Gaelen Phyfe 2 Audigé, Laurent 2 Brown University Center for Evidence-Based Medicine 2 Es-Safi, Nour Eddine 2 Fabiani, Roberto 2 Gonzalez-Aguilera, Diego 2 Halliday, Chris 2 Hernandez, Adrian V. 2 Langberg, Valerie 2 Lanza, Stefania 2 Lädermann, Alexandre 2 Muzirafuti, Anselme 2 Narzisi, Antonio 2 Paraforos, Dimitrios 2 Randazzo, Giovanni 2 Rodríguez-Gonzálvez, Pablo 2 Roman, Yuani M. 2 Scheibel, Markus 2 Springs, Stacey 2 University of Connecticut Evidence-based Practice Center 2 University of York NHS Centre for Reviews & Dissemination 2 Vagelpohl, Uwe 2 White, C. Michael 2 Albqmi, Mha 1 Ali, Syed Mithun 1 Alvarez, Maria Arias 1 Amato, Viola 1 American Institutes for Research 1 Apgar, Amanda 1 Baker, Tracie 1 Baraitser, Lisa 1 Benelli, Giovanni 1 Bergroth, Harley 1 Blanco, Guillermo 1 Boehm, Isabelle 1 Borgards, Roland 1 Borja, Rafael 1 Bouchard, Stéphane 1 Calagna, Gloria 1 Carmen Soares 1 Carrete, Martina 1 Cattani, Carlo 1 Cheng, Yumin 1 Choi, Won Il 1 Choksey, Lara 1 Cirella, Giuseppe T. 1 Connor, Kristin 1 Daedlow, Katrin 1 De, Suparna 1 Duke University Evidence-based Practice Center 1 Edmond, Jennifer 1 Engineer, Altaf 1 Estrada-Guillén, Marta 1 Falcus, Sarah 1 Fernandes, Júlio Belo 1 Fuller, David 1 Gagnier, Joel J. 1 Gatto, Andrea 1 Godinho, Catarina 1 Gruber, Bettina 1 Grütter, Oliver 1 Guiné, Raquel P. F. 1 Hansjürgens, Bernd 1 Harde, Roxanne 1 Helming, Katharina 1 Henderson, Carol 1 Hobisch, Elisabeth 1 Hodaifa, Gassan 1 Horsley, Nicola 1 Ida, Aletheia 1 Jagow, Bettina von 1 Joaquim Pinheiro 1 Kabir, Golam 1 Kerschbaum, Stephanie L. 1 Khan, Naeem 1 Kim, Sunkuk 1 Koellner, Thomas 1 Kokkola, Lydia 1 Konno, Katsuhiro 1 Konrad, Tatiana 1 Kontoyiannis, Dimitrios P. 1 Korzun, Dmitry 1 Kosonen, Heidi S. 1 Kruczek, Zygmunt 1 Krüger-Fürhoff, Irmela Marei 1 Kumar, Munish 1 Käser, Rudolf 1 Lehmann, Jörg 1 Link, Daniela 1 Luchner, Katharina 1 Macnaughton, Jane 1 María García-García, Rosa 1 see all ... less ...

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