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Clinical Implication of the Arterial Supplies and Their Anastomotic Territories of the Nasolabial Region for Avoiding Arterial Devastation and Complications during Soft Tissue Filler injection

The nasolabial fold is one of the most concerning aging property in the middle face region. This fold initially appears when people are coming age‐wise to their 20s. To correct this fold, the aesthetic nonsurgical procedure, known as filler injection, has been popularly and increasingly performed. However, the arterial complications occurring as a consequence of nasolabial fold filler injection have been continually reported in a recent year. Therefore, the objective of this study was to investigate the arterial location related to nasolabial fold filler injection sites and their anastomotic pathways.