Affiliation: | 1. University of Fribourg, Department of Economics, Bd. de Pérolles 90, Fribourg 1700, Switzerland;2. University of Goettingen, Department of Economics, Platz der Goettinger Sieben 3, Goettingen 37073, Germany;1. Department of Pathology and Laboratory Medicine, University of Texas Health Science Center at Houston, Houston, TX, 77030;2. Department of Pathology, Providence Portland Medical Center, Portland, OR, 97213;3. Department of Diagnostic and Interventional Imaging, University of Texas Health Science Center at Houston, Houston, TX, 77030;4. Department of Gynecology, Guang''anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China, 100053;1. New York Medical College, Valhalla, NY;2. Department of Otolaryngology-Head and Neck Surgery, The New York Eye and Ear Infirmary of Mount Sinai, New York, NY;3. Department of Head and Neck Radiology, The New York Eye and Ear Infirmary of Mount Sinai, New York, NY;4. Department of Head and Neck Pathology, The New York Eye and Ear Infirmary of Mount Sinai, New York, NY |