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Hilgers FJ, Balm AJ, Gregor RT.Hilgers FJ, et al. Among authors: gregor rt.HNO. 1995 Mar;43(3):197-201.HNO. 1995.PMID: 7759304German.No abstract available.
Hilgers FJ, Balm AJ, Gregor RT.Hilgers FJ, et al. Among authors: gregor rt.HNO. 1995 Apr;43(4):261-7.HNO. 1995.PMID: 7790240Review.German.No abstract available.
Elias MM, Hilgers FJ, Keus RB, Gregor RT, Hart AA, Balm AJ.Elias MM, et al. Among authors: gregor rt.Clin Otolaryngol Allied Sci. 1995 Jun;20(3):249-53. doi: 10.1111/j.1365-2273.1995.tb01860.x.Clin Otolaryngol Allied Sci. 1995.PMID: 7554339