A field bioassay for assessing ivermectin bio-efficacy in wild malaria vectors oleh Kelly M. Ominde, Yvonne Kamau, Jonathan Karisa, Martha N. Muturi, Caroline Kiuru, Caroline Wanjiku, Lawrence Babu, Festus Yaah, Mercy Tuwei, Haron Musani, Zedekiah Ondieki, Simon Muriu, Joseph Mwangangi, Carlos Chaccour, Marta F. Maia