Unpublished data and personal communication should not be listed as references, but mentioned par-enthetically in the text. The author should provide written authorization for the use of personal communication. Abbreviations of the names of the journals should conform to Index Medicus . Journal titles should be cited as they existed at the time of publication. Unlisted journals should not be abbreviated.
Authors are responsible for the accuracy of references.
Periorbital cellulitis in infancy. J Pediatr Ophthalmol Strabismus. Books van Barsewisch B. Perinatal Retinal Hemorrhages. Duane's Clinical Ophthalmology. Rev ed, vol 1.