Heidary G, Hampton LL, Schanen NC, Rivkin MJ, Darras BT, Battey J, Francke U. Exclusion of the gastrin-releasing peptide receptor (GRPR) locus as a candidate gene for Rett syndrome. Am J Med Genet. 1998 Jun 30;78(2):173–5. doi: 10.1002/(sici)1096-8628(19980630)78:2<173::aid-ajmg15>3.0.co;2-k. PMID: 9674911.