Identification of a novel B allele with a nucleotide deletion (c.3_4 del G) in the ABO gene associated with a Bx phenotype individual. Issue 2 (14th December 2018) - Ying, Yanling; Hong, Xiaozhen; Xu, Xianguo; Ma, Kairong; Chen, Su; He, Ji; Hu, Wei; Zhu, Faming