• The Swedish Snus and the Sudanese Toombak: are they different? 

      Idris, Ali M.; Ibrahim, Salah Osman; Vasstrand, Endre N.; Johannessen, Anne Christine; Lillehaug, Johan; Magnusson, Bengt; Wallström, M.; Hirsch, Jan M.; Nilsen, Rune (Journal article, 1998-11)
      In Sweden, snuff (locally known as snus), was introduced since the year 1637. Presently, Sweden has the highest per capita consumption and sale figures of snuff in the world, and the habit is becoming increasingly popular. ...