The top three reasons responsible for continuous smoking for all patients failed to quit smoking were : ( @ ) others smoked more than me and still alive and healthy -LSB- @ % ( @/@ ) -RSB- ; ( @ ) smoking helped me to keep relaxed and reduce trouble in daily work and life -LSB- @ % ( @/@ ) -RSB- ; ( @ ) smoking was essential while chatting and drinking with friends -LSB- @ % ( @/@ ) -RSB- .