Pavlova, Gergana. “CHANGES IN THE FACIAL MUSCLES WITH ADVANCING AGE AND THEIR INFLUENCE ON THE AESTHETIC APPEARANCE OF THE FACE”. KNOWLEDGE - International Journal 62, no. 4 (February 15, 2024): 515–520. Accessed July 17, 2024. https://ikm.mk/ojs/index.php/kij/article/view/6626.