Biodegradable Pansy® occluder for patent foramen ovale closure: a multicenter, single-arm, prospective study - He, Lu; Xie, Hang; Gao, Yongsheng; Zhang, Gangcheng; Shen, Qunshan; Wang, Minghua; Wang, Qiguang; Wang, Yujiu; Du, Yajuan; Zhu, Xianyang; Zhang, Yushun (Frontiers in Cardiovascular Medicine, 2025)