title: Achalasia cardia.
mesh_terms: D004931:Esophageal Achalasia / Q000150:complications* / Q000000981:diagnostic imaging; D005764:Gastroesophageal Reflux / Q000209:etiology*; D006801:Humans; D007223:Infant; D008297:Male; D011015:Pneumonia, Aspiration / Q000209:etiology*; D011859:Radiography