The new smoking-cessation service-package comprises ( 1 ) regular patient motivation and coaching from the same primary care nurse over a 3-month period ; ( 2 ) monthly application of piCO + smokerlyzer to sustain motivation of smoker 's quitting attempt and provide positive feedback over a 3-month period ; ( 3 ) assistance by an assigned family member ; ( 4 ) nicotine replacement chewing gum to relieve withdrawal symptoms .