Department of Prosthetic Dentistry, School of Dental and 0ral Medicine, Cologne University, Cologne, Germany;
Institute for Medical Microbiology, Immunology and Hygiene, Cologne University, Cologne, Germany;
Department of Prosthetic Dentistry, School of Dental and 0ral Medicine, Cologne University, Cologne, Germany;
Institute for Medical Microbiology, Immunology and Hygiene, Cologne University, Cologne, Germany;
Institute for Anatomy I, Cologne University, Cologne, Germany;
Institute for Anatomy I, Cologne University, Cologne, Germany;
Institute for Medical Statistics, Informatics and Epidemiology, Cologne University, Cologne, Germany;
Department of Pre-Clinical Dentistry, School of Dental and 0ral Medicine, Cologne University, Cologne, Germany;
Department of Prosthetic Dentistry, School of Dental and 0ral Medicine, Cologne University, Cologne, Germany;