Label-Free Identification of Early Gastrointestinal Neuroendocrine Tumors via Biomedical Multiphoton Microscopy and Automatic Image Analysis. - Lianhuang Li; Shenghui Huang; Lida Qiu; Weizhong Jiang; Zhifen Chen; Deyong Kang; Haohua Tu; Jianxin Chen; Yongjian Zhou (IEEE Access, 2020)