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Koletzko S, Bürgin-Wolff A, Koletzko B, Knapp M, Burger W, Grüneklee D, Herz G, Ruch W, Thon A, Wendel U, et al.Koletzko S, et al. Among authors: koletzko b.Eur J Pediatr. 1988 Nov;148(2):113-7. doi: 10.1007/BF00445915.Eur J Pediatr. 1988.PMID: 3069470Clinical Trial.
Koletzko S, Waag KL, Koletzko B.Koletzko S, et al. Among authors: koletzko b.Dtsch Med Wochenschr. 1994 Mar 31;119(13):458-62. doi: 10.1055/s-2008-1058715.Dtsch Med Wochenschr. 1994.PMID: 8156869German.