TY - SER AU - Albano,Filipe de Medeiros AU - Caten,Carla Schwengber ten TI - Analysis of the relationships between proficiency testing, validation of methods and estimation of measurement uncertainty : a qualitative study with experts KW - PROFICIENCY TESTING KW - IF N1 - YI2016 M09 UR - http://siweb.dss.go.th/article/show_atricle.asp?article_ID=1919 Sources - Accreditation and Quality Assurance Sources - 21 (2) 2016 : 161-166 ISSN - 0949-1775 ER -