%0 Book Section %A Littlewood, Janet D. %T Core investigative and laboratory techniques %B BSAVA Manual of Canine and Feline Dermatology %D 2012 %I British Small Animal Veterinary Association %R doi:https://doi.org/10.22233/9781905319886.3 %U https://www.bsavalibrary.com/content/chapter/10.22233/9781905319886.chap3