{"version":"1.0","type":"link","title":"Serum BDNF, PD-1, MMP-9 in AECOPD: prognostic value and a dual-axis risk model.","author_name":"Liu S 외","author_url":"https://prs-insight.online/author/Liu%20S","provider_name":"PRSinsight","provider_url":"https://prs-insight.online","thumbnail_url":"https://prs-insight.online/og/paper/168450","thumbnail_width":1200,"thumbnail_height":630}