Wadstein, J. “Zymbilan®-PSO Cream With Nano-Encapsulated RetileX-A®-PRO Mitigates the Clinical Severity and Relieves the Symptoms of Chronic Plaque Psoriasis: An Interventional Clinical Study”. International Journal of Research in Dermatology, vol. 7, no. 4, June 2021, pp. 503-7, doi:10.18203/issn.2455-4529.IntJResDermatol20212544.