March 2003 Peer Reviewed Feature Articles Bile on the rocks: a guide to gallstones Robert Nguyen, Christopher S Pokorny Problems of age in rheumatology Paul Kubler, Michael J Ahern Acute upper airways obstruction in children Gary C Geelhoed A different approach to the care of the diabetic foot Grace Warren Investigating patients with a vasculitic rash D Heyworth-Smith, John Quin Advertisement Peer Reviewed Regular Series Ophthalmology clinic Cataract surgery: a guide for GPs and patients Graham A Lee Drug update Using bisoprolol and carvedilol in chronic heart failure Henry Krum Perspectives on orthopaedics A 65-year-old man with increasing difficulty walking Ralph Stanford Emergency medicine Acute chest and abdominal pain Gordian Fulde Perspectives on dermoscopy A recent pale nodule with pseudocysts Steven Kossard Dermatology clinic Itchy blisters on exposed skin Steven Kossard Forum Ins and outs of the Pharmaceutical Benefits Scheme John Bennett, Paul P Glasziou Innocence revisited Innocence revisited – 33 John Scott Advertisement Advertisement