Archibald Leman Cochrane (12 January 1909 - 18 June 1988) was a Scottish physician noted for his book, Effectiveness and Efficiency: Random Reflections on Health Services, which advocated the use of randomized controlled trials (RCTs) to improve clinical trials and medical interventions.

Clinical trials are prospective biomedical or behavioral research studies on human participants designed to answer specific questions about biomedical or behavioral interventions, including new treatments (such as novel vaccines, drugs, dietary choices, dietary supplements, and medical devices) and known interventions that warrant further study and comparison.

Cochrane is a British international charitable organisation formed to synthesize medical research findings to facilitate evidence-based choices about health interventions involving health professionals, patients and policy makers.

The Wikipedia page on the COVID-19 pandemic provides a comprehensive overview of the ongoing global pandemic caused by the novel coronavirus.

A database is an organized collection of data stored and accessed electronically.

The Wikipedia page on medicine provides an overview of the field of medicine, covering various aspects such as its history, branches, education, research, practice, and ethics.

MEDLINE (Medical Literature Analysis and Retrieval System Online, or MEDLARS Online) is a bibliographic database of life sciences and biomedical information.

PubMed is a free search engine for accessing a vast collection of biomedical literature, including scientific journals, clinical research papers, and articles on health-related subjects.