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Georg C, Kopp A, Schröder S, Küttner A, Ohnesorge B, Martensen J, Clausen CD.Georg C, et al. Among authors: kopp a.Rofo. 2001 Jun;173(6):536-41. doi: 10.1055/s-2001-14983.Rofo. 2001.PMID: 11471295German.
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Kopp AF, Ohnesorge B, Flohr T, Georg C, Schröder S, Küttner A, Martensen J, Claussen CD.Kopp AF, et al.Rofo. 2000 May;172(5):429-35. doi: 10.1055/s-2000-673.Rofo. 2000.PMID: 10874969German.
Mehnert F, Pereira PL, Dammann F, Erdtmann B, Hahn U, Kopp AF, Vonthein R, Georg C, Claussen CD.Mehnert F, et al. Among authors: kopp af.Rofo. 2000 Dec;172(12):972-7. doi: 10.1055/s-2000-9212.Rofo. 2000.PMID: 11199440German.
Heuschmid M, Küttner A, Flohr T, Wildberger JE, Lell M, Kopp AF, Schröder S, Baum U, Schaller S, Hartung A, Ohnesorge B, Claussen CD.Heuschmid M, et al. Among authors: kopp af.Rofo. 2002 Jun;174(6):721-4. doi: 10.1055/s-2002-32227.Rofo. 2002.PMID: 12063601German.
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Trabold T, Küttner A, Heuschmid M, Burgstahler C, Mewis C, Kopp AF, Schröder S, Kühlkamp V, Claussen CD.Trabold T, et al. Among authors: kopp af.Rofo. 2003 Jan;175(1):89-93. doi: 10.1055/s-2003-36603.Rofo. 2003.PMID: 12525987German.
Trabold T, Buchgeister M, Küttner A, Heuschmid M, Kopp AF, Schröder S, Claussen CD.Trabold T, et al. Among authors: kopp af.Rofo. 2003 Aug;175(8):1051-5. doi: 10.1055/s-2003-40926.Rofo. 2003.PMID: 12886472
Heuschmid M, Küttner A, Schröder S, Trebar B, Burgstahler C, Mahnken A, Niethammer M, Trabold T, Kopp AF, Claussen CD.Heuschmid M, et al. Among authors: kopp af.Rofo. 2003 Oct;175(10):1349-54. doi: 10.1055/s-2003-42892.Rofo. 2003.PMID: 14556103German.