Cornwell, R., Boothroyd, L., Burt, D., Feinberg, D., Jones, B., Little, A., …Perrett, D. (2004). Concordant preferences for opposite-sex signals? Human pheromones and facial characteristics. Proceedings of the Royal Society B: Biological Sciences, 271(1539), 635-640. https://doi.org/10.1098/rspb.2003.2649