What is "n.e.d."

No Evidence of Disease or N.E.D. is an adult-oriented alternative/ folk rock band whose members are all medical doctors, mostly gynecologists and gynecologic oncologists. Their members include John Bogess, M.D. on lead vocals, guitar, and harmonica; Joanie M. Hope, M.D. on lead vocals and guitar; robotic surgeon Nimesh Nagarsheth, M.D. on drums and percussion; William "Rusty" Robinson, M.D. on bass and harmonica, John Soper, M.D. on guitar, slide guitar, and mandolin; and William Winter, M.D. on guitar and backing vocals. They made their self-titled debut on Motéma Music in 2009, and followed with a self-produced CD in 2010 titled 6 Degrees. They have been profiled by Lifetime Television and thinkMTV.com, and are the subject of the documentary No Evidence of Disease produced by Spark Media. Their songs focus on emotional content and make no explicit cancer references.