關於「Phlegm sputum」標籤，搜尋引擎有相關的訊息討論：

Sputum: Definition, colors, causes, and when to see a doctorwww.medicalnewstoday.com › articlesGreen, Yellow, and Brown Phlegm: What Does it Mean? - Healthlinewww.healthline.com › health › green-phlegmSputum stain for mycobacteria: MedlinePlus Medical Encyclopediamedlineplus.go