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Important lessons have been learned in the use of injectable PLLA that have helped reduce the frequency of adverse events and make it desirable for restoring facial volume (Table 1). The importance of diffuse distribution of the injectable PLLA suspension
At week 24, mean improvement in WSRS from baseline was 2.09 0.68 for the PLA side and 1.54 0.65 for the HA side. Both injections were well toler- ated, and the adverse reactions were mild and transient in most cases. PLA provides noninferior efficac