TY - JOUR T1 - Monitoring of Phenylalanine Levels in Patients with Phenylketonuria Using Dried Blood Spots: a Comparison of Two Methods JO - Journal of Inborn Errors of Metabolism and Screening A1 - Sebastião, Fernanda Medeiros A1 - Burin, Maira Graeff A1 - Civallero, Gabriel A1 - Tirelli, Kristiane Michelin A1 - Sitta, Angela A1 - Coelho, Daniella de Moura A1 - Vargas, Carmen Regla A1 - Wajner, Moacir A1 - Giugliani, Roberto A1 - Bitencourt, Fernanda Hendges de A1 - Schwartz, Ida Vanessa Doederlein SN - 2326-4594 UL - 10.1590/2326-4594-JIEMS-2019-0011 VL - 8 Y1 - 2020 PB - Brasil ER -