Elsevier BV (CrossRef) (246)
Elsevier BV (CrossRef) ausschließen
Springer Science and Business Media LLC (CrossRef) (188)
Springer Science and Business Media LLC (CrossRef) ausschließen
Wiley (CrossRef) (163)
Wiley (CrossRef) ausschließen
American Physical Society (APS) (CrossRef) (148)
American Physical Society (APS) (CrossRef) ausschließen
Ovid Technologies (Wolters Kluwer Health) (CrossRef) (93)
Ovid Technologies (Wolters Kluwer Health) (CrossRef) ausschließen
Verbunddaten SWB (92)
Verbunddaten SWB ausschließen
Oxford University Press (OUP) (CrossRef) (75)
Oxford University Press (OUP) (CrossRef) ausschließen
Informa UK Limited (CrossRef) (63)
Informa UK Limited (CrossRef) ausschließen
BMJ (CrossRef) (47)
BMJ (CrossRef) ausschließen
American Medical Association (AMA) (CrossRef) (38)
American Medical Association (AMA) (CrossRef) ausschließen
Lizenzfreie Online-Ressourcen (37)
Lizenzfreie Online-Ressourcen ausschließen
Royal Society of Chemistry (RSC) (CrossRef) (33)
Royal Society of Chemistry (RSC) (CrossRef) ausschließen
SAGE Publications (CrossRef) (31)
SAGE Publications (CrossRef) ausschließen
American Chemical Society (ACS) (CrossRef) (30)
American Chemical Society (ACS) (CrossRef) ausschließen
American Society of Hematology (CrossRef) (30)
American Society of Hematology (CrossRef) ausschließen
JSTOR Life Sciences Archive (29)
JSTOR Life Sciences Archive ausschließen
SPIE (CrossRef) (28)
SPIE (CrossRef) ausschließen
Naxos Music Library (Klassik) (23)
Naxos Music Library (Klassik) ausschließen
MDPI AG (CrossRef) (20)
MDPI AG (CrossRef) ausschließen
Public Library of Science (PLoS) (CrossRef) (19)
Public Library of Science (PLoS) (CrossRef) ausschließen
American Society for Microbiology (CrossRef) (18)
American Society for Microbiology (CrossRef) ausschließen
JSTOR (CrossRef) (15)
JSTOR (CrossRef) ausschließen
JSTOR Health & General Sciences (15)
JSTOR Health & General Sciences ausschließen
American Association for Cancer Research (AACR) (CrossRef) (14)
American Association for Cancer Research (AACR) (CrossRef) ausschließen
American Society of Clinical Oncology (ASCO) (CrossRef) (13)
American Society of Clinical Oncology (ASCO) (CrossRef) ausschließen
Georg Thieme Verlag KG (CrossRef) (13)
Georg Thieme Verlag KG (CrossRef) ausschließen
American Association for the Advancement of Science (AAAS) (CrossRef) (11)
American Association for the Advancement of Science (AAAS) (CrossRef) ausschließen
American Astronomical Society (CrossRef) (9)
American Astronomical Society (CrossRef) ausschließen
American Geophysical Union (AGU) (CrossRef) (9)
American Geophysical Union (AGU) (CrossRef) ausschließen
BASE - Bielefeld Academic Search Engine (9)
BASE - Bielefeld Academic Search Engine ausschließen
Cambridge University Press (CUP) (CrossRef) (9)
Cambridge University Press (CUP) (CrossRef) ausschließen
F1000 Research Ltd (CrossRef) (8)
F1000 Research Ltd (CrossRef) ausschließen
Frontiers Media SA (CrossRef) (8)
Frontiers Media SA (CrossRef) ausschließen
The Company of Biologists (CrossRef) (8)
The Company of Biologists (CrossRef) ausschließen
Portland Press Ltd. (CrossRef) (7)
Portland Press Ltd. (CrossRef) ausschließen
American Academy of Pediatrics (AAP) (CrossRef) (6)
American Academy of Pediatrics (AAP) (CrossRef) ausschließen
Emerald (CrossRef) (6)
Emerald (CrossRef) ausschließen
Forschungszentrum Jülich: JuSER (Juelich Shared Electronic Resources) (6)
Forschungszentrum Jülich: JuSER (Juelich Shared Electronic Resources) ausschließen
IOP Publishing (CrossRef) (6)
IOP Publishing (CrossRef) ausschließen
Institute of Electrical and Electronics Engineers (IEEE) (CrossRef) (6)
Institute of Electrical and Electronics Engineers (IEEE) (CrossRef) ausschließen
JMIR Publications Inc. (CrossRef) (6)
JMIR Publications Inc. (CrossRef) ausschließen
Proceedings of the National Academy of Sciences (CrossRef) (6)
Proceedings of the National Academy of Sciences (CrossRef) ausschließen
Association for Research in Vision and Ophthalmology (ARVO) (CrossRef) (5)
Association for Research in Vision and Ophthalmology (ARVO) (CrossRef) ausschließen
Rockefeller University Press (CrossRef) (5)
Rockefeller University Press (CrossRef) ausschließen
AIP Publishing (CrossRef) (4)
AIP Publishing (CrossRef) ausschließen
Acoustical Society of America (ASA) (CrossRef) (4)
Acoustical Society of America (ASA) (CrossRef) ausschließen
American Physiological Society (CrossRef) (4)
American Physiological Society (CrossRef) ausschließen
International Union of Crystallography (IUCr) (CrossRef) (4)
International Union of Crystallography (IUCr) (CrossRef) ausschließen
JSTOR Arts & Sciences I Archive (4)
JSTOR Arts & Sciences I Archive ausschließen
Mary Ann Liebert Inc (CrossRef) (4)
Mary Ann Liebert Inc (CrossRef) ausschließen
Optica Publishing Group (CrossRef) (4)
Optica Publishing Group (CrossRef) ausschließen
Royal College of General Practitioners (CrossRef) (4)
Royal College of General Practitioners (CrossRef) ausschließen
eLife Sciences Publications, Ltd (CrossRef) (4)
eLife Sciences Publications, Ltd (CrossRef) ausschließen
Canadian Science Publishing (CrossRef) (3)
Canadian Science Publishing (CrossRef) ausschließen
Cold Spring Harbor Laboratory (CrossRef) (3)
Cold Spring Harbor Laboratory (CrossRef) ausschließen
Hindawi Limited (CrossRef) (3)
Hindawi Limited (CrossRef) ausschließen
IGI Global (CrossRef) (3)
IGI Global (CrossRef) ausschließen
American Institute of Aeronautics and Astronautics (AIAA) (CrossRef) (2)
American Institute of Aeronautics and Astronautics (AIAA) (CrossRef) ausschließen
American Psychological Association (APA) (CrossRef) (2)
American Psychological Association (APA) (CrossRef) ausschließen
American Society for Cell Biology (ASCB) (CrossRef) (2)
American Society for Cell Biology (ASCB) (CrossRef) ausschließen
American Society for Clinical Investigation (CrossRef) (2)
American Society for Clinical Investigation (CrossRef) ausschließen
Annual Reviews (CrossRef) (2)
Annual Reviews (CrossRef) ausschließen
Archives of Pathology and Laboratory Medicine (CrossRef) (2)
Archives of Pathology and Laboratory Medicine (CrossRef) ausschließen
CMA Impact Inc. (CrossRef) (2)
CMA Impact Inc. (CrossRef) ausschließen
Copernicus GmbH (CrossRef) (2)
Copernicus GmbH (CrossRef) ausschließen
EconStor (German National Library of Economics, ZBW) (2)
EconStor (German National Library of Economics, ZBW) ausschließen
European Centre for Disease Control and Prevention (ECDC) (CrossRef) (2)
European Centre for Disease Control and Prevention (ECDC) (CrossRef) ausschließen
International Monetary Fund (IMF) (CrossRef) (2)
International Monetary Fund (IMF) (CrossRef) ausschließen
JSTOR Language & Literature Archive (2)
JSTOR Language & Literature Archive ausschließen
Michigan State University Press (CrossRef) (2)
Michigan State University Press (CrossRef) ausschließen
Microbiology Society (CrossRef) (2)
Microbiology Society (CrossRef) ausschließen
Naxos Music Library Jazz (2)
Naxos Music Library Jazz ausschließen
Oncology Nursing Society (ONS) (CrossRef) (2)
Oncology Nursing Society (ONS) (CrossRef) ausschließen
Project MUSE (CrossRef) (2)
Project MUSE (CrossRef) ausschließen
Royal College of Psychiatrists (CrossRef) (2)
Royal College of Psychiatrists (CrossRef) ausschließen
S. Karger AG (CrossRef) (2)
S. Karger AG (CrossRef) ausschließen
Scientific Societies (CrossRef) (2)
Scientific Societies (CrossRef) ausschließen
South African Medical Association NPC (CrossRef) (2)
South African Medical Association NPC (CrossRef) ausschließen
The Endocrine Society (CrossRef) (2)
The Endocrine Society (CrossRef) ausschließen
The Royal Society (CrossRef) (2)
The Royal Society (CrossRef) ausschließen
University of Chicago Press (CrossRef) (2)
University of Chicago Press (CrossRef) ausschließen
University of Illinois Press (CrossRef) (2)
University of Illinois Press (CrossRef) ausschließen
AOSIS (CrossRef) (1)
AOSIS (CrossRef) ausschließen
American Academy of Sleep Medicine (AASM) (CrossRef) (1)
American Academy of Sleep Medicine (AASM) (CrossRef) ausschließen
American Diabetes Association (CrossRef) (1)
American Diabetes Association (CrossRef) ausschließen
American Meteorological Society (CrossRef) (1)
American Meteorological Society (CrossRef) ausschließen
American Roentgen Ray Society (CrossRef) (1)
American Roentgen Ray Society (CrossRef) ausschließen
American Society for Photobiology (CrossRef) (1)
American Society for Photobiology (CrossRef) ausschließen
American Society of Civil Engineers (ASCE) (CrossRef) (1)
American Society of Civil Engineers (ASCE) (CrossRef) ausschließen
American Thoracic Society (CrossRef) (1)
American Thoracic Society (CrossRef) ausschließen
British Editorial Society of Bone & Joint Surgery (CrossRef) (1)
British Editorial Society of Bone & Joint Surgery (CrossRef) ausschließen
CMA Joule Inc. (CrossRef) (1)
CMA Joule Inc. (CrossRef) ausschließen
CSIRO Publishing (CrossRef) (1)
CSIRO Publishing (CrossRef) ausschließen
Centers for Disease Control MMWR Office (CrossRef) (1)
Centers for Disease Control MMWR Office (CrossRef) ausschließen
DOAJ Directory of Open Access Journals (1)
DOAJ Directory of Open Access Journals ausschließen
EDP Sciences (CrossRef) (1)
EDP Sciences (CrossRef) ausschließen
Food Studies (1)
Food Studies ausschließen
Institutional Repository of Leibniz Universität Hannover (1)
Institutional Repository of Leibniz Universität Hannover ausschließen
International Journal of Alcohol and Drug Research (CrossRef) (1)
International Journal of Alcohol and Drug Research (CrossRef) ausschließen
JSTOR Arts & Sciences II Archive (1)
JSTOR Arts & Sciences II Archive ausschließen