APA

Schaefer K., George M. A., Abelson M. B. & Garofalo C. (19940811). A scanning electron micrographic comparison of the effects of two preservative-free artificial tear solutions on the corneal epithelium as compared to a phosphate buffered saline and a 0.02% benzalkonium chloride control. : Advances in experimental medicine and biology.

Chicago

Schaefer K, George M A, Abelson M B and Garofalo C. 19940811. A scanning electron micrographic comparison of the effects of two preservative-free artificial tear solutions on the corneal epithelium as compared to a phosphate buffered saline and a 0.02% benzalkonium chloride control. : Advances in experimental medicine and biology.

Harvard

Schaefer K., George M. A., Abelson M. B. and Garofalo C. (19940811). A scanning electron micrographic comparison of the effects of two preservative-free artificial tear solutions on the corneal epithelium as compared to a phosphate buffered saline and a 0.02% benzalkonium chloride control. : Advances in experimental medicine and biology.

MLA

Schaefer K, George M A, Abelson M B and Garofalo C. A scanning electron micrographic comparison of the effects of two preservative-free artificial tear solutions on the corneal epithelium as compared to a phosphate buffered saline and a 0.02% benzalkonium chloride control. : Advances in experimental medicine and biology. 19940811.