Meanwhile, experts continue to recommend the old standbys: nicotine replacement gums, patches, nasal sprays, inhalers and lozenges, which have been proved to be safe.

• 同时，专家们继续推荐旧有的被证明是安全的措施：尼古丁替代的口香糖、透皮贴剂、喷鼻剂、吸入剂和糖锭。