ENERGY-BASED DEVICES STIMULATING COLLAGEN FOR NON-SURGICAL LIFTING: A COMPARATIVE REVIEW OF HIGH-INTENSITY FOCUSED ULTRASOUND (HIFU) AND RADIOFREQUENCY (RF) TECHNOLOGIES. The Research of Medical Science Review, [S. l.], v. 4, n. 6, p. 956–984, 2026. Disponível em: https://medicalsciencereview.com/index.php/Journal/article/view/3881.. Acesso em: 28 jun. 2026.