DETERMINATION OF PHENOLIC COMPOUNDS AND WATER-SOLUBLE VITAMINS IN THE EXTRACT OF A POPLAR (POPULUS ALBA) AND WILLOW (SALIX) MIXTURE BY HPLC METHOD AND EVALUATION OF THEIR BIOLOGICAL SIGNIFICANCE. EJPCR [Internet]. 2026 Jan. 27 [cited 2026 Apr. 4];2(1):27-39. Available from: https://eurekaoa.com/index.php/1/article/view/265