IN THIS MONTH'S BULLETIN

In editorials this month, Stephen Martin and colleagues (714) explain why stockpiles of oral cholera vaccine are needed and Godelieve van Heteren and colleagues (715) point to areas of debate in health systems research. Ben Jones & Mireia Bes (718-719) report on efforts to increase organ donations.

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Correcting vision

TR Fricke et al. (728-738) estimate how much it would cost to correct refractive error.

Treating every case

Hsien-Ho Lin et al. (739-747) consider the likely impact of new methods of diagnosing tuberculosis.