When does heartburn warrant more concern?
Walsh
J H
JH
D002299:Cardia; D004938:Esophageal Neoplasms / Q000209:etiology*; D005764:Gastroesophageal Reflux / Q000150:complications; D006356:Heartburn / Q000150:complications*; D006801:Humans; D013274:Stomach Neoplasms / Q000209:etiology*