Variation (1) Children (1) Care (1) Diseases (1) Winter (1) Volume (Cubic content) (1) Throat (1) Symptoms (1) Spleen (1) Physicians (1) Percentage (1) Otolaryngology (1) Nose (1) Neck (1) Necessity (Philosophy) (1) Months (1) Medical students (1) Head (1) Experience (1) Ear (1) Cycles (1) Vocational guidance (1) Population (1) Patients (1) Students (1) Necesidad (Filosofía) (1) Oído (1) Bazo (1) Nariz (1) Cuello (1)