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Transactions of the Royal Society of Tropical Medicine and Hygiene > 2003 > 97 > 2 > 193-197
Transactions of the Royal Society of Tropical Medicine and Hygiene > 1996 > 90 > 2 > 175-178
Transactions of the Royal Society of Tropical Medicine and Hygiene > 2003 > 97 > 2 > 193-197
Transactions of the Royal Society of Tropical Medicine and Hygiene > 1996 > 90 > 2 > 175-178