Discussion paper on “Comparing the agreement of a commercial cortisol kit with a biologically validated assay in evaluating faecal cortisol metabolite levels in koala joeys” Publications https://www-sciencedirect-com.ezproxy.library.sydney.edu.au/science/article/pii/S1095643323000508 https://www-sciencedirect-com.ezproxy.library.sydney.edu.au/science/article/pii/S1095643323000508