What type of literature primarily presents original research studies and findings?

Primary literature is the type of literature that presents original research studies and findings. This includes articles published in peer-reviewed journals, conference proceedings, and dissertations that report new data or research conducted by the authors themselves. These sources provide direct evidence and detailed methodologies, allowing researchers to analyze and interpret the results in the context of their own work.

In contrast, secondary literature reviews, synthesizes, or analyzes primary research. It does not present original findings but instead provides summaries or interpretations of studies that have already been conducted. Tertiary literature consists of compilations or categorizations of secondary sources, such as textbooks, encyclopedias, and databases, which provide a general overview but lack in-depth research findings.

Pharmacopeial literature is a specific type of documentation that establishes standards for drugs, including their quality, purity, strength, and consistency, and is not focused on presenting original research studies. Thus, primary literature remains the most direct source for original findings in scientific and medical research.