| 1/2 | US=20 / Odontologia Scully C. Angular cheilitis (angular stomatitis). In: ___. Oral and maxillofacial medicine: the basis of diagnosis and treatment. 2nd ed. Edinburgh: Churchill Livingstone, 2008. p. 147-9. ISBN 978-0-443-06818-8. |
| 2/2 | US=20 / Odontologia Scully C. Angular cheilitis (angular stomatitis). In: ___. Oral and maxillofacial medicine: the basis of diagnosis and treatment. 2nd ed. Edinburgh: Churchill Livingstone, 2008. p. 147-9. ISBN 978-0-443-06818-8. |