Reduced pulmonary vascular bed volume in cryptogenic stroke patients with patent foramen ovale: a myocardial contrast echocardiography study - Xu, Li; Zhang, Jie; Wang, Donghua; Lv, Yanli; Zheng, Xiaozhi (Quantitative Imaging in Medicine and Surgery; Vol 15, No 9 (September 01, 2025): Quantitative Imaging in Medicine and Surgery, 2025)