Quality of artemisinin-based combination formulations for malaria treatment: prevalence and risk factors for poor quality medicines in public facilities and private sector drug out... oleh Harparkash Kaur, Elizabeth Louise Allan, Ibrahim Mamadu, Zoe Hall, Ogochukwu Ibe, Mohamed El Sherbiny, Albert van Wyk, Shunmay Yeung, Isabel Swamidoss, Michael D Green, Prabha Dwivedi, Maria Julia Culzoni, Siân Clarke, David Schellenberg, Facundo M Fernández, Obinna Onwujekwe