79Harvey, PR,
Spiers, DR,
Wood, DA. A comparison of bisoprolol with propranolol in the prophylaxis of common or classic migraine – a randomised, double-blind, crossover, multicentre trial in the United Kingdom. In:
Rose, FC ed.
New advances in headache research: 4.
London:
Smith-Gordon,
1994:
133–40.
Google Scholar