Production, purification and characterization of recombinant human R-spondin1 (RSPO1) protein stably expressed in human HEK293 cells - Levin, Gabriel; Koga, Bruna Andrade Aguiar; Belchior, Gustavo Gross; Carreira, Ana Claudia Oliveira; Sogayar, Mari Cleide (BMC Biotechnology, 2020)