TY - JOUR AU - LiguoriI, Gabriel AU - MoreiraI, Luiz T1 - Operating with Data - Statistics for the Cardiovascular Surgeon: Part III. Comparing Groups JO - Braz J Cardiovasc Surg VL - 33 SP - V EP - X PY - 2018 SN - 11 M3 - doi 10.21470/1678-9741-2018-0378 UR - //www.rbccv.org.br/article/3002