Kimura, E, Spears, GF, Singh, KI, Samarawickrema, WA, Penaia, L, Sone, PF, Pelenatu, S, Faaiuaso, ST, Self, Lee S and Dazo, BC (1992) Long-term efficacy of single-dose mass treatment with diethylcarbamazine citrate against diurnally subperiodic Wuchereria bancrofti: eight years' experience in Samoa. Bulletin of the World Health Organization, 70 (6). p. 769.