Development of a group-specific antibody-based immunoassay method for simultaneously detecting sildenafil-like adulterants in herbal spirit drinks - Haoyu Chen; Yongyi Zhang; Yantao Hua; Yuanxin Tian; Hong Wang; Zhenlin Xu; Xuecai Tan; Yudong Shen; Jinyi Yang (Food Additives & Contaminants: Part A, 2021)