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Several polyadenylylation (PA) signals containing elements upstream of the AAUAAA have recently been characterized. Similar to PA elements found downstream of the AAUAAA, the upstream elements(More)
Although the existence of accessory foramina in the furcation area and roots of permanent teeth has been demonstrated, the presence of accessory foramina in furcation areas of primary molars is less(More)
Four classes of accessory canals: "true," "blind," "looping" and "enclosed" canals have been suggested to exist in furcation areas of primary teeth. Although the existence of accessory canals in the(More)