1. Wikipedia contributors. (2021, January 5). Pareidolia. Retrieved February 9, 2021, from Wikipedia, The Free Encyclopedia website: https://en.wikipedia.org/wiki/Pareidolia
2. Robson, D. (2014, July). Neuroscience: why do we see faces in everyday objects? BBC. Retrieved from https://www.bbc.com/future/article/20140730-why-do-we-see-faces-in-objects
3. Baker, S. R., Noorelahi, Y. M., Ghosh, S., Yang, L. C., & Kasper, D. J. (2013). History of metaphoric signs in radiology. European Journal of Radiology, 82(9), 1584–1587. doi: 10.1016/j.ejrad.2013.04.005
4. Roche, C. J., O’Keeffe, D. P., Lee, W. K., Duddalwar, V. A., Torreggiani, W. C., & Curtis, J. M. (2002). Selections from the buffet of food signs in radiology. Radiographics: A Review Publication of the Radiological Society of North America, Inc, 22(6), 1369–1384. doi: 10.1148/rg.226025521
5. Ridley, L. J., Xiang, H., Han, J., & Ridley, W. E. (2018). Animal signs in Radiology: method of creating a compendium. Journal of Medical Imaging and Radiation Oncology, 62 Suppl 1, 7–11. doi: 10.1111/1754-9485.12783
6. Radiology Pareidolia [@radiologypareidolia]. (n.d.). Posts [Instagram profile]. From https://www.instagram.com/radiologypareidolia
7. Radiology Pareidolia [@RadioPareidolia]. (n.d.). Tweets [Twitter profile]. From https://twitter.com/radiopareidolia