Ahnlide, I. et al. 2014. Diagnosis of Pigmented Skin Tumours in a Dermatological Setting: Different Aspects of the Number Needed to Excise as a Measure of Efficiency. Acta Dermato-Venereologica. 94, 6 (Apr. 2014), 683–686. DOI:https://doi.org/10.2340/00015555-1831.