Patricia Yudkin, Kate Hey Yudkin, Sarah Roberts Yudkin, Sarah Welch, Michael Murphy, Robert Walton et al
Yudkin P, Yudkin K H, Yudkin S R, Welch S, Murphy M, Walton R et al.
Abstinence from smoking eight years after participation in randomised controlled trial of nicotine patch
BMJ 2003; 327 :28
doi:10.1136/bmj.327.7405.28