title: Who and what should we rely on in early diagnosis of idiopathic pulmonary fibrosis?
authors.forename: Xiaoqian
authors.initials: X
authors.lastname: Chen
authors.forename: Xiaoju
authors.initials: X
authors.lastname: Zhang
authors.forename: Xiu
authors.initials: X
authors.lastname: Li
authors.forename: Zheng
authors.initials: Z
authors.lastname: Wang
mesh_terms: D006801:Humans; D054990:Idiopathic Pulmonary Fibrosis / Q000175:diagnosis*; D012135:Respiratory Sounds / Q000503:physiopathology*