Authors: M Okada; T Yao; K Imamura; K Maeda; T Yamamoto; T Koga; T Fuchigami; M Iida; Y Okada Journal: Am J Gastroenterol Date: 1989-05 Impact factor: 10.864
Authors: K H Lai; F Y Chang; S H Tsay; L C Lu; J T Cheng; S S Jeng; T C Wu; W W Ng; J S Jeng; S D Lee Journal: J Gastroenterol Hepatol Date: 1991 Mar-Apr Impact factor: 4.029
Authors: D Y Graham; K Akdamar; W P Dyck; E Englert; R G Strickland; J L Achord; A A Belsito; Z R Vlahcevic; R N Kornfield; W B Long Journal: Ann Intern Med Date: 1985-05 Impact factor: 25.391