M?t s? nghiên c?u ?ã ch? ra r?ng, ?n 28gr l?c ho?c b? trong vòng m?t tu?n s? làm gi?m t? l? 25% nguy c? phát tri?n s?i m?t. “. These leaves are wildly developed, and their extract results in a shiny black colour. In the meantime, a result of the unavailability of this kind of leaves, people from other portions of the place produce the purpl