TY - JOUR T1 - Retraction—Hydroxychloroquine or chloroquine with or without a macrolide for treatment of COVID-19: a multinational registry analysis AU - Mehra, Mandeep R AU - Ruschitzka, Frank AU - Patel, Amit N Y1 - 2020/06/13 PY - 2020 N1 - doi: 10.1016/S0140-6736(20)31324-6 DO - 10.1016/S0140-6736(20)31324-6 T2 - The Lancet JF - The Lancet SP - 1820 VL - 395 IS - 10240 PB - Elsevier SN - 0140-6736 M3 - doi: 10.1016/S0140-6736(20)31324-6 UR - https://doi.org/10.1016/S0140-6736(20)31324-6 Y2 - 2021/01/21 ER -