Photographs of CMHA-S film-treated wounds ((a), (c)) and untreated controls ((b), (d)) on the forelegs of a dog at 21 days ((a),(b)) and a horse at 26 days ((c), (d)). Note the amount of new epithelial tissue on the treated wounds, the raised granulation tissue with little epithelialization on the control wound of the dog (b), and the raised, yellowish exuberant granulation tissue on the control wound of the horse (d).