title: The definition of acute respiratory illnesses in general practice.
mesh_terms: D000208:Acute Disease; D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D005194:Family Practice; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008875:Middle Aged; D012140:Respiratory Tract Diseases / Q000145:classification / Q000175:diagnosis*