PT - JOURNAL ARTICLE AU - Egil Nilsen TI - Smoking Habits among School Children in Norway AID - 10.1136/jech.13.1.5 DP - 1959 Jan 01 TA - British Journal of Preventive & Social Medicine PG - 5--13 VI - 13 IP - 1 4099 - http://jech.bmj.com/content/13/1/5.short 4100 - http://jech.bmj.com/content/13/1/5.full SO - Br J Prev Soc Med1959 Jan 01; 13