Does cigarette smoking do nothing but harm?

Affiliations

• ¹ From the Department of Neurology (S.F., Y.T.), Fukuoka University, Japan; and Department of Neurology (R.-M.W.), National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei. shinsuke@cis.fukuoka-u.ac.jp.
• ² From the Department of Neurology (S.F., Y.T.), Fukuoka University, Japan; and Department of Neurology (R.-M.W.), National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei.