“STUDY OF A LIQUID EXTRACT WITH A CALMING EFFECT DERIVED FROM THE ROOTS AND RHIZOMES OF THE COMMON PEONY (PAEONIA OFFICINALIS)”. European Journal of Interdisciplinary Research and Development 56 (October 27, 2026): 165–173. Accessed October 28, 2026. https://ejird.journalspark.org/index.php/ejird/article/view/2289.