Blar i Bergen Open Research Archive på forfatter "Johnson, N. W."
-
Characterization of an amorphous deposit in the lamina propria in oral snuff users in the Sudan as collagen
Idris, Ali M.; Warnakulasuriya, K. A. A. Saman; Ibrahim, Y. E.; Hartley, R.; Paterson, K.; Patel, B.; Nilsen, Rune; Johnson, N. W. (Peer reviewed; Journal article, 1998-04)Histological and ultrastructural features of 25 oral snuff dipper's lesions with distinctive subepithelial hyaline deposits were investigated. Periodic acid-Schiff reaction with and without diastase digestion demonstrated ... -
Toombak Use and Cigarette Smoking in the Sudan: Estimates of Prevalence in the Nile State
Idris, Ali M.; Ibrahim, Y. E.; Warnakulasuriya, K. A. A. Saman; Cooper, D. J.; Johnson, N. W.; Nilsen, Rune (Peer reviewed; Journal article, 1998-07)Background. Survey data on the prevalence of use of oral snuff (toombak) and cigarette consumption according to various demographic factors are needed in the Sudan. Methods. A house to house cross-sectional survey of a ...