1. Latin American Working Group for Preanalytical Phase (WG-PRE-LATAM), Latin America Confederation of Clinical Biochemistry (COLABIOCLI), Montevideo, Uruguay
2. Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
3. Comisión Para la Protección Contra Riesgos Sanitarios del Estado de Jalisco (COPRISJAL), Secretaria de Salud, Guadalajara, México
4. Quality Assurance, LAC, Montevideo, Uruguay
5. Management Area, Clinical Laboratory, BIONET S.A, Santiago, Chile
6. Laboratory of Thrombosis and Hemostasis, Department of Hematology-Oncology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
7. Clinical Laboratory, Universidad Peruana Cayetano Heredia, Lima, Perú
8. Facultad de Medicina, Universidad Católica de Cuenca, Cuenca, Ecuador