For citations:

Adzhiakhmetova S.L., Pozdnyakova A.E. Development of an Analytical Procedure for the Quantitative Determination of Choline in Ear Drops Based on Viscum album Leaf Soft Extract. Regulatory Research and Medicine Evaluation. 2025;15(1):57-62. (In Russ.) https://doi.org/10.30895/1991-2919-2025-668