NetoA.D.M., PereiraR.M.A., da RosaR.D., WestphalF.L. and NunesJ.C. 2021. Use of ultrasonography to guide central venous catheterization in Manaus hospitals. Electronic Journal Collection Health. 13, 2 (Feb. 2021), e6393. DOI:https://doi.org/10.25248/reas.e6393.2021.