Diagnosis of Biliary Atresia Can Not Be Excluded by Declining Trend of Serum Direct Bilirubin - Takeshi Saito; Keita Terui; Hideo Yoshida; Jun Iwai; Tetsuya Mitsuanga; Yasuyuki Higashimoto; Mitsuyuki Nakata; Eriko Saito (Pediatric Reports, 2013)