Access immediate answers on the medical conditions you're likely to see with this unique, bestselling resource! Ferri's Clinical Advisor 2021 uses the popular "5 books in 1? format to deliver vast amounts of information in a clinically relevant, user-friendly manner. This practical reference is updated annually to provide you with easy access to answers on 1,000 common medical conditions, including diseases and disorders, differential diagnoses, clinical algorithms, laboratory tests, and clinical practice guidelines-all carefully reviewed by experts in key clinical fields. Extensive algorithms, along with hundreds of clear figures, tables, and photographs, ensure that you stay current with today's medical practice. Contains significant updates throughout, covering all aspects of current diagnosis and treatment. Features 30 all-new topics including Covid-19 disease, anal cancer, electronic cigarette or vaping-associated lung injury (EVALI), gaming disorder, early pregnancy loss, smoke inhalation injury, and subjective cognitive decline, among others. Includes useful appendices covering common herbs in integrated medicine and herbal activities against pain and chronic diseases; care of the transgender patient, palliative care; preoperative evaluation, and more.