Curbing Misinformation and Disinformation in the COVID-19 Era: A View from Cuba.

As the COVID-19 health crisis engulfs the planet, we are sub-merged in a parallel pandemic: the glut of misinformation and disinformation. The data associated with this phenomenon are creating a disaster within a disaster. In early April 2020, the Span-ish news agency EFE[1] reported that over one million internet ac-counts were dedicated to rumor-mongering, spreading unverifi ed information about the coronavirus.

The Chronic Kidney Disease Epidemic in El Salvador: A Cross-Sectional Study.

INTRODUCTION Chronic kidney disease has reached epidemic levels in several Central American countries since the early years of this century. In El Salvador, it is the second cause of death in men, the fifth in persons over 18 years old and the third cause of hospital deaths in the adult population. Its features, especially those of a subtype unassociated with traditional risk factors such as diabetes and high blood pressure, are only partially understood.

[Explanation of samples sizes in current biomedical journals: an irrational requirement].

Objectives: To discuss the theoretical relevance of current requirements for explanations of the sample sizes employed in published studies, and to assess the extent to which these requirements are currently met by authors and demanded by referees and editors.

Methods: A literature review was conducted to gain insight into and critically discuss the possible rationale underlying the requirement of justifying sample sizes. A descriptive bibliometric study was then carried out based on the original studies published in the six journals with the highest impact factor in the field of health in 2009.