by Hung, Le Ngoc, de Vries, Peter J., Thuy, Le Thi Diemn, Lien, Bich, Long, Ho Phi, Hung, Tran Nhu, Van Nam, Nguyen, Anh, Trinh Kim, Kager, Piet A.
Published in Transactions of the Royal Society of Tropical Medicine and Hygiene (01.03.1997)