Coronel Restrepo, N., M. Mejía Zuluaga, N. Aristizabal, and J. L. Torres Grajales. “Refractory Hypokalemia As a Clinical Manifestation of Ectopic Cushing Syndrome: A Report of Two Cases and a Review of the Literature”. Revista Colombiana De Endocrinología, Diabetes &Amp; Metabolismo, vol. 6, no. 1, Mar. 2019, pp. 42-50, doi:10.53853/encr.6.1.467.