R. Tsang, M. Sill, S. Skinner, D. Law, J. Zhou, und J. Wylie. Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America, 44 (12):
1611--4(Juni 2007)PMID: 17516405.
R. Brooks, C. Woods, D. Benjamin, und N. Rosenstein. Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America, 43 (1):
49--54(Juli 2006)PMID: 16758417.
A. Wilder-Smith, K. Goh, T. Barkham, und N. Paton. Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America, 36 (6):
679--83(März 2003)PMID: 12627350.
L. Hanna, N. Girgis, A. el Ella, und Z. Farid. Metabolic, Pediatric, and Systemic Ophthalmology (New York, N.Y.: 1985), 11 (4):
160--162(1988)PMID: 3221799.