Recovery of DNA of Giardia intestinalis cysts from surface water concentrates measured with PCR and real time PCRM. Adamska, A. Leońska-Duniec, A. Maciejewska, M. Sawczuk and B. SkotarczakParasite, 18 4 (2011) 341-343DOI: https://doi.org/10.1051/parasite/2011184341