Study on the surface morphology of the developmental stages of the liver fluke, Opisthorchis viverrini (Trematoda: Opisthorchiidae)T. Scholz, O. Ditrich and M. GibodaAnn. Parasitol. Hum. Comp., 67 3 (1992) 82-90DOI: https://doi.org/10.1051/parasite/199267382