Authors: S Koletzko; A Bürgin-Wolff; B Koletzko; M Knapp; W Burger; D Grüneklee; G Herz; W Ruch; A Thon; U Wendel Journal: Eur J Pediatr Date: 1988-11 Impact factor: 3.183
Authors: A Bürgin-Wolff; R M Bertele; R Berger; H Gaze; H K Harms; M Just; S Khanna; K Schürmann; E Signer; D Tomovic Journal: J Pediatr Date: 1983-05 Impact factor: 4.406