TY - JOUR T1 - Cardiac Ultrasound Image Disappearance in the Precordial Area as a New Specific Ultrasound Sign for Diagnosing Neonatal Pneumothorax and Precardiac Thoracentesis Therapy: A Retrospective Case–Control Study JO - Archivos de Bronconeumología T2 - AU - Liu,Jing AU - Yan,Wei AU - Yang,Jian-Wei AU - Fu,Wei SN - 03002896 M3 - 10.1016/j.arbres.2022.07.018 DO - 10.1016/j.arbres.2022.07.018 UR - https://www.archbronconeumol.org/en-cardiac-ultrasound-image-disappearance-in-articulo-S0300289622005117 ER -