Azian Abd. Aziz, Ahmad Fadzil Abdullah, and Raja Ahmad RL Ahmad, “Two Cases of Congenital Vallecular Cyst: A Reminder of the Potentially Fatal Cause of Upper Airway Obstruction in Infants”, Malays J Med Sci, vol. 17, no. 3, pp. 68–73, Sep. 2010, doi: 10.21315/.