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Schauseil-Zipf U, Thun F, Kellermann K, Mandl-Kramer S, auf der Haar K.Schauseil-Zipf U, et al. Among authors: thun f.Eur J Pediatr. 1983 Jun-Jul;140(3):260-7. doi: 10.1007/BF00443373.Eur J Pediatr. 1983.PMID: 6628448