抽痰英文關於「Expectoration」標籤，搜尋引擎有相關的訊息討論：
“Induced sputum versus gastric lavage for the diagnosis of ...2013年5月16日 · For microbiological confirmation of diagnoses of pulmonary tuberculosis (PTB) in young children, sequential gastric lavage (GL) is recommended.缺少字詞： tw | 必須包含以下字詞：twSputum induction for the diagnosis of