Instruction and study (1) Diseases (1) Throat (1) Influenza (1) Cough (1) Bronchitis (1) Cooling (1) Practice (1) Infections (1) Tos (1) Bronquitis (1) Gripe (1) Morbilidad (1) Infecciones (1) Enfermedades (1) Refroidissement (1) Bronchite (1) Infections (1) Pratique (1) Gorge (1) Maladies (1) Grippe (1) Toux (1) mal (1)