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Brägger U, Hugel-Pisoni C, Bürgin W, Buser D, Lang NP.Brägger U, et al. Among authors: lang np.Clin Oral Implants Res. 1996 Sep;7(3):230-9. doi: 10.1034/j.1600-0501.1996.070305.x.Clin Oral Implants Res. 1996.PMID: 9151587
Brägger U, Hämmerle CH, Lang NP.Brägger U, et al. Among authors: lang np.Clin Oral Implants Res. 1996 Sep;7(3):268-76. doi: 10.1034/j.1600-0501.1996.070309.x.Clin Oral Implants Res. 1996.PMID: 9151591Clinical Trial.