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Granger DA, Hibel LC, Fortunato CK, Kapelewski CH (November 2009). "Medication effects on salivary cortisol: tactics and strategy to minimize impact in behavioral and developmental science". Psychoneuroendocrinology. 34 (10): 1437–48. doi:10.1016/j.psyneuen.2009.06.017. PMID19632788. S2CID3100315.
Lane J (2006). "Can non-invasive glucocorticoid measures be used as reliable indicators of stress in animals?". Animal Welfare. 15 (4): 331–342. doi:10.1017/S0962728600030657. S2CID80026053.