Publisher
- ovid technologies (wolters kluwer health)4
- elsevier bv:po box 211, 1000 ae amsterdam netherlands:011 31 20 4853757, 011 31 20 4853642, 011 31 20 4853641, email: nlinfo-f@elsevier.nl, internet: http://www.elsevier.nl, fax: 011 31 20 48535983
- hippokrates verlag3
- pediatria medica e chirurgica3
- academic press2
- elsevier b.v.2
- elsevier ltd2
- georg thieme verlag stuttgart2
- sage2