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by Wick, Mark R., M.D.; Livolsi, Virginia A., M.D.; Pfeifer, John D., M.D., Ph.D.; et al.
by Zeocat 9 (1990 Leipzig, Germany); Pfeifer, Harry; Fricke, R.; et al.
by Goggin, Jeannine Wadoz; Spence, Stephanie; Gallagher, Maureen; et al.
by Lenk, Arno; Ballas, Rüdiger G.; Werthschützky, Roland; et al.
by Hara, F.; Pfeifer, R.
by Rüdiger G. Ballas; Günther Pfeifer; Roland Werthschützky
by F. Hara; ?R. Pfeifer