The National Library of Medicine (NLM) responds to more than 100,000 questions each year. Regularly asked questions become Frequently Asked Questions (FAQs). NLM Reference and Consumer Health FAQs are at http://www.nlm.nih.gov/services/faqref.html . We review and update our FAQs frequently. FAQs often include national and international government agencies and non-profit organizations. One of our FAQs isRead… Read more »