Caution during treatment The most important aspect of nasolabial fold correction using dermal filler is avoiding facial arteries. A lot of data on the course of facial arteries and vasculature related to nasolabial folds, etc. have become available. However, it is still very difficult to generalize due to wide variability between patients. One could come to the following conclusions based on the most convincing data. First, the facial arteries may lie in shallow areas about 1-2 cm laterally…
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