1: Vakili H, Nyman JO, Genina N, Preis M, Sandler N. Application of a colorimetric technique in quality control for printed pediatric orodispersible drug delivery systems containing propranolol hydrochloride. Int J Pharm. 2016 Sep 10;511(1):606-618. doi: 10.1016/j.ijpharm.2016.07.032. Epub 2016 Jul 18.