From left) Prof Sophia Chan Siu-chee, Prof Lam Tai-hing, Prof Anthony J Hedley and Prof Sarah M McGhee urged the community to support 50% increase of tobacco tax.

• 左起)陈肇始教授；林大庆教授；贺达理教授和麦洁仪教授呼吁社会各界支持增加烟草税.