Steroids are hormones that occur naturally in the body. Steroid medicines are man-made and are similar to the natural hormones made in the body. Steroids can be classified based on their chemical composition.[52] One example of how MeSH performs this classification is available at the Wikipedia MeSH catalog. Examples of https://www.ird.gov.lk/en/Lists/QuickFeedback/DispForm.aspx?ID=262372