Xue Wen, Peng Lei, Shengxin Huang, Xiaoyu Chen, Yanchi Yuan, Di Ke, Rui Liu, Jiaxi Liang, Erqi Wang, Bo Wei, Kedi Xiong, Sihua Yang. High-fluence relay-based disposable photoacoustic-ultrasonic endoscopy for in vivo anatomical imaging of gastrointestinal tract[J]. Photonics Research, 2023, 11(1): 55