6Secondari C, Abbatiello A, De Stefano C A,et al. A case of a gi- ant calculus of the submandibular gland[J]. Minerva Stomatol, 1990,39(4) :283-286.
7Rauso R, Gherardini G, Biondi P, et al. A case of a giant sub- mandibular gland calculus perforating the floor of the mouth[J]. Ear Nose Throat J,2012,91(6) :E25-27.
8Soares E C, Costa F W, Pessoa R M,et al. Giant salivary calcu- lus of the submandibular gland[J]. Otolaryngol Head Neck Surg, 2009,140(1) :128-129.
9Emir H, Kaptan Z K, Uzunkulaoglu H,et al. A rare case of a- symptomatic bilateral submandibular gland sialolithiasis: a gi ant, fistulized calculus on the right and multiple calculi on the left[J]. Ear Nose Throat J,2010,89(10) :502-504.
