1. Synchronous tumours of the parotid gland with different histology;Goh;Br J Oral Maxillofac Surg,1989
2. Simultaneously occurring salivary gland tumours of different types;Bab;J Oral Surg,1979
3. Coexisting benign mixed tumor and mucoepidermoid carcinoma of the parotid gland;Pontilena;Annals of Otorhinolaryngology,1979
4. Synchronous benign epithelial tumours arising in the palatal minor salivary gland;Takeda;Acta Pathol Jpn,1990
5. Rare synchronous parotid tumors of different histologic types;Janecka;Plast Reconstr Surg,1983