title: Letter to the Editor.
authors.affiliation: Department of Population Medicine, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada.
authors.forename: Firdous Ahmad
authors.initials: FA
authors.lastname: Khan
mesh_terms: D000818:Animals; D004198:Disease Susceptibility / Q000662:veterinary*; D004716:Endometritis / Q000662:veterinary*; D005260:Female; D006734:Horse Diseases / Q000276:immunology*; D056747:Immunomodulation; D009569:Nitric Oxide / Q000096:biosynthesis*; D014599:Uterus / Q000378:metabolism*
chemical_list: D009569:Nitric Oxide