James F Kirwan research fellow, Julia A Nightingale specialist registrar, Catey Bunce medical statistician, Richard Wormald senior lecturer
Kirwan J F, Nightingale J A, Bunce C, Wormald R.
β Blockers for glaucoma and excess risk of airways obstruction: population based cohort study
BMJ 2002; 325 :1396
doi:10.1136/bmj.325.7377.1396