PT - JOURNAL ARTICLE ED - , TI - UPDATED COCHRANE REVIEW SHOWS ELECTRONIC CIGARETTES CAN HELP PEOPLE QUIT SMOKING; MORE EVIDENCE IS NEEDED ON LONG-TERM HARMS DP - 2020 Nov 01 TA - Saudi Medical Journal PG - 1271--1272 VI - 41 IP - 11 4099 - http://smj.org.sa/content/41/11/1271.short 4100 - http://smj.org.sa/content/41/11/1271.full SO - Saudi Med J2020 Nov 01; 41