. Out of 1071 adolescents studied, DE was registered in 336 individuals (31.4%). DE was more frequent among 17 year old where erosive wear was diagnosed in 189 (34.3%) adolescents compared to 147 (28.3%) in 15 year olds. Erosive wear was more common in males, 188 individuals (34.4%) showed DE and 148 (28.2%) in females.. Multiplication Calculator - Math.net. Multiplication (often denoted by the cross symbol "×", by a point "⋅", by juxtaposition, or, on computers, by an asterisk "∗") is one of the four elementary mathematical operations of arithmetic, with the others being addition, subtraction and division. × = ? Calculator to give out the multiplication result of two whole numbers.. Sweden Area Code and Sweden Country Code - CountryCallingCodes. Medical - 112. Fire - 112. Police - 112. Local Telephone Prefix: 0 is the trunk code for Sweden. More ways to call Sweden: Call Sweden with Rebtel - Save 50% now! Map of Sweden. The Swedish country code and Sweden area code chart below gives you the necessary information for calling Swedish cities.. Stockholm, Sweden Postal Codes. 164 00 164 06 164 07 164 19 164 21 164 22 164 25 164 26 164 28 164 30 164 31 164 32 164 33 164 34 164 35 164 36 164 37 164 38 164 39 . 34 105 35 105 36 105 39 105 40 105 44 105 45 105 46 105 52 105 53 105 60 105 61 105 70 105 71 105 78 105 80 105 82 105 83 105 88 105 99 105 47 105 49 105 50 105 69 105 73 105 74 106 00 106 10 106 11 106 12 106 .. Crohns disease in Stockholm County during 1990-2001: An .. Study area and population. Stockholm County covers an area of 6 519 km 2 with both urban and rural parts. The population increased from 1.64 to 1.84 million inhabitants between 1990 and 2001[].The number of individuals aged 16-90 years increased from 1.33 to 1.47 million during the same period and attributed to approximately 80% of the total population..