McGraw-Hill,5 Churchill Livingstone Elsevier,2 Littlefield,2 Mosby Elsevier,2 academic press,2 W. H. Freeman and company,2 Year Book Medical Publisher,1 Houghton mifflin company,1 Elsevier,1 The dushkin publishing group,1 Wiley-Blackwell,1 penguin random house UK,1 American Academy of pediatrics dan American Heart Association,1 cpsia1 Prentice-Hall,1 Company,1 Princeton university press,1 Merril,1 The dryden press,1 wikipedia articles1