Fu HY, Zhao RQ, Bai GL, Yin CL, Yin RK, Li HH, Shi WN, Liu YL, Cheng LJ, Jia XY, Li GG, Zhao SG. [Value of serum gamma-glutamyl transpeptidase combined with direct bilirubin in the diagnosis of biliary atresia in infants]. Zhongguo Dang Dai Er Ke Za Zhi. 2019 Dec;21(12):1198–202. PMID: 31874659; PMCID: PMC7389014.