Nature CommunicationsPlatelet-bioengineered hiPSC-sEVs achieve targeted repair of fibrotic sinoatrial node in preclinical SND modelsHanfeng LiuYangxi ZengWei FanXi LanCan LiuYisong HeZhaoting LiKewei JiaJuyi WanBin Liao2025-12-09Full textDOI https://doi.org/10.1038/s41467-025-65936-0