{{Cite journal| doi = 10.1590/0102-311x00277420| issn = 1678-4464, 0102-311X| volume = 37| issue = 3| pages = –00277420| last1 = Kameda| first1 = Koichi| last2 = Barbeitas| first2 = Mady| last3 = Caetano| first3 = Rosângela| last4 = Löwy| first4 = Ilana| last5 = Oliveira| first5 = Ana Claudia Dias de| last6 = Corrêa| first6 = Marilena Cordeiro Dias Villela| last7 = Cassier| first7 = Maurice| title = Testing COVID-19 in Brazil: fragmented efforts and challenges to expand diagnostic capacity at the Brazilian Unified National Health System| journal = Cadernos de Saúde Pública| access-date = 2021-05-04| date = 2021| url = http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-311X2021000306001&tlng=en}}