Implementation of point-of-care testing of C-reactive protein concentrations to improve antibiotic targeting in respiratory illness in Vietnamese primary care: a pragmatic cluster-... by Do, NTT, Vu, TVD, Greer, RC, Dittrich, S, Vandendorpe, M, Pham, NT, Ta, DN, Cao, HT, Khuong, TV, Le, TBT, Duong, TH, Nguyen, TH, Cai, NTH, Nguyen, TQT, Trinh, ST, van Doorn, HR, Lubell, Y, Lewycka, S