ﺍﺳﺘﻴﺎﺀ ﻭﺍﺳﻊ ﻣﻦ ﻧﻔﺎﺩ ﺍﻷﺩﻭﻳﺔ ﺩﺍﺧﻞ ﺻﻴﺪﻟﻴﺎﺕ ﻣﺴﺘﺸﻔﻰ ﺍﻷﻋﺼﺎﺏ