Bosmia, Anand N.; Smelser, Luke B.; Griessenauer, Christoph J. (November 7, 2014). “An apocryphal case of craniopagus parasiticus: the legend of Edward Mordake”. Child's Nervous System31 (12): 2211–2. doi:10.1007/s00381-014-2581-6. PMID25378260.
Bosmia, Anand N.; Smelser, Luke B.; Griessenauer, Christoph J. (November 7, 2014). “An apocryphal case of craniopagus parasiticus: the legend of Edward Mordake”. Child's Nervous System31 (12): 2211–2. doi:10.1007/s00381-014-2581-6. PMID25378260.