1726-46341726-4634S1726-4634202100020031310.17843/rpmesp.2021.382.6867PeruPerúPerú00042021000420213823133172010375972597251557-68200745331-6200329022222976-8420121555588-951988134661465-920115333e18-5520116366482-320187311212-22Clinical and Laboratory Standards Institute2018132011991-2020054310105026-33199929551128-3220183144e00020-1820126555406-112017611010E00816-7200627198-200201021114-1020196^s2^s22S263-41932219506-820094912121861-7