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Dr. Arruda is a hematology researcher at The Children's Hospital of Philadelphia and an associate professor of Pediatrics in the Perelman School of Medicine at the University of Pennsylvania. His laboratory focuses on gene-based strategies for the treatment of bleeding and thrombotic diseases.

Patients with vitiligo have a choice of many treatment options, which run the gamut from applying make-up to depigmented areas, to light treatment, all the way up to surgery to move pigmented skin cells to affected areas. Yet, many patients elect not to treat the condition at all, despite the fact that the condition can be emotionally devastating and progressive.

A low-dose adrenocorticotropic hormone (ACTH) stimulation test is more sensitive in patients with cases of mild hypoadrenalism, and the high-dose test often misses secondary hypoadrenalism due to pituitary or hypothalamic dysfunction. Endocrinologists still debate test result interpretation for the low-dose test, however.

On Tuesday, the American Medical Association's House of Delegates debated the wisdom of forming a so-called Super PAC to help influence elections. However, the idea raised a number of concerns.