Expression of the PTCH1 tumor suppressor gene is regulated by alternative promoters and a single functional Gli-binding siteAgren, Marie; Kogerman, Priit; Kleman, Marika I.; Wessling, Martina; Toftgard, RuneGene2004 / p. 101-114 : ill https://pubmed.ncbi.nlm.nih.gov/15087129/

Studies of CD44 hyaluronan binding domain as novel angiogenesis inhibitor = CD44 hüaluroonhapet siduv domään kui uudne angiogeneesi inhibiitorPäll, Taavi2013 https://www.ester.ee/record=b2992362*est