19 Million biomedical citations and growing every day! Pubmed is a free search engine for accessing the MEDLINE database of citations and abstracts of biomedical research articles. MEDLINE (Medical Literature Analysis and Retrieval System Online) is a literature database of life sciences and biomedical information. Pubmed draws from approximately 5,000 peer-reviewed publications covering biomedicine and health from 1950 to present. Pubmed.org offers the user a global archive of information, at his or her fingertips, without charge. This site is dedicated to making the search for "green" medical data easier to the end user by drawing up and presenting specific search data from Pubmed that show natural substances stimulating self-healing or correction of imbalances in the test tube, animal, and human models.