International guidelines
Rest of the world
Published by:World Health Organization
Last published:2020
Published by:Society of Obstetricians and Gynaecologists of Canada
Last published:2017
Published by:The College of Physicians and Surgeons of Ontario
Last published:2015
Published by:Centers for Disease Control and Prevention
Last published:2011
Published by:National Heart Lung and Blood Institute; Centers for Disease Control and Prevention; National institute of Allergy and Infectious Diseases
Last published:2005
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