Challenging Cases in Rheumatology and Diseases of the Immune System is the latest title in a growing collection of thought-provoking case-based titles from Massoud Mahmoudi, D.O., Ph.D. Like his three preceding titles, Challenging Cases in Allergy and Immunology (2009), Challenging Cases in Allergic and Immunologicá Diseases of the Skin (2010), and Challenging Cases in Pulmonology (2011), this easy-to-read title presents the topic in a challenging and enjoyable case-based format. Developed by 3…