Rittayamai N.Marinpong V.Chuaychoo B.Tscheikuna J.Brochard L.J.Mahidol University2024-04-252024-04-252024-04-15American journal of respiratory and critical care medicine Vol.209 No.8 (2024) , 1016-1018https://repository.li.mahidol.ac.th/handle/123456789/98109MedicineUltrasound Evaluation of Parasternal Intercostal, Diaphragm Activity, and Their Ratio in Male Patients with Chronic Obstructive Pulmonary DiseaseLetterSCOPUS10.1164/rccm.202310-1769LE2-s2.0-851907540831535497038319129