0 1 2 3 4   metallic taste in mouth
0 1 2 3 4   decreased saliva
0 1 2 3 4   chronic coughing
0 1 2 3 4   canker sores
0 1 2 3 4   gagging, frequent need to clear throat
0 1 2 3 4   swollen or discolored tongue, gums, or lips
0 1 2 3 4   bleeding gums
0 1 2 3 4   loosening of teeth, periodontal disease
0 1 2 3 4   increased saliva
0 1 2 3 4   sore throat
0 1 2 3 4   loss of voice
0 1 2 3 4   hoarseness