Fig. 1From: High anti-Ascaris seroprevalence in fattening pigs in Sichuan, China, calls for improved management strategiesGeographical locations of the 13 studied farms (farms A–M; Table 1) in Sichuan Province, China. Serum samples (numbers in parentheses) were collected from fattening pigs and then tested using the As-Hb antigen-based ELISABack to article page