Gawrońska, P.; Flisiuk, M.; Cielica, W.; Koncewicz, A. The Analysis of Risk Factors for Developing Shingles. Curr. Issues Pharm. Med. Sci. 2012, 25 (4), 392-395. https://doi.org/10.12923/j.2084-980X/25.4/a.11.