JC, H., KA, F., & H, E. (2003). Inhibition of collagenase breakdown of equine corneas by tetanus antitoxin, equine serum and acetylcysteine. Veterinary ophthalmology, 6(1), 67. https://doi.org/10.1046/j.1463-5224.2003.00271.x
Chicago Style (17th ed.) CitationJC, Haffner, Fecteau KA, and Eiler H. "Inhibition of Collagenase Breakdown of Equine Corneas by Tetanus Antitoxin, Equine Serum and Acetylcysteine." Veterinary Ophthalmology 6, no. 1 (2003): 67. https://doi.org/10.1046/j.1463-5224.2003.00271.x.
MLA (9th ed.) CitationJC, Haffner, et al. "Inhibition of Collagenase Breakdown of Equine Corneas by Tetanus Antitoxin, Equine Serum and Acetylcysteine." Veterinary Ophthalmology, vol. 6, no. 1, 2003, p. 67, https://doi.org/10.1046/j.1463-5224.2003.00271.x.