“…Regarding symptoms of taste disorders, the patients were asked to answer the following statements ( Supplementary Table S1 ). 13 , 15 First, they were asked to choose either “recognize easily (score 2)”, “recognize somewhat (score 1)”, or “recognize not at all (score 0)” to the following statements used in previous studies: 12 , 13 , 15 “I can detect sweetness in cocoa, cakes, or candies”, “I can detect salt in chips, or salted nuts”, “I can detect sourness in vinegar, pickles, or lemon”, and “I can detect bitterness in coffee, beer, or tonic water”. The patients were then asked to choose types of taste disorders they had from the following statements: “I feel the taste was distorted (dysgeusia)”, “I sensed the taste even though there was nothing in the mouth (phantogeusia)”, “I feel the taste was exaggerated (hypergeusia)”, “I feel the taste was decreased (hypogeusia)”, “I cannot feel the taste totally (ageusia)”, and “I feel the taste normally (normogeusia)”.…”