Kozieł, Sławomir, Raja Chakraborty, and Aneta Sitek. “Second to Fourth Digits Ratio (2D:4D) and Subjective Pain Experience in Tattooing”. Anthropological Review 76, no. 1 (June 30, 2013): 117–124. Accessed November 3, 2024. https://czasopisma.uni.lodz.pl/ar/article/view/11042.