Implementation of C-reactive protein point of care testing to improve antibiotic targeting in respiratory illness in Vietnamese primary care (ICAT): a study protocol for a cluster... by Thi Thuy Do, N, Greer, RC, Lubell, Y, Dittrich, S, Vandendorpe, M, Nguyen, VA, Ngoc Thach, P, Thi Dieu Ngan, T, Van Kinh, N, Hung Thai, C, Dung, LTK, Nguyen Thi Cam, T, Nguyen, TH, Nadjm, B, van Doorn, HR, Lewycka, S