Somlak Vanavanan. (1996) Up-date on value of the anion gap in clinical diagnosis and laboratory evaluation. Mahidol University,:ม.ป.ท.Somlak Vanavanan. 1996. Up-date on value of the anion gap in clinical diagnosis and laboratory evaluation. ม.ป.ท.:Mahidol University,;Somlak Vanavanan. Up-date on value of the anion gap in clinical diagnosis and laboratory evaluation. ม.ป.ท.:Mahidol University, 1996. Print.