Kivlan BR, Nho SJ, Christoforetti JJ, Ellis TJ, Matsuda DK, Salvo JP, Wolff AB, Van Thiel GS, Stubbs AJ, Carreira DS. Multicenter Outcomes After Hip Arthroscopy: Epidemiology (MASH Study Group). What Are We Seeing in the Office, and Who Are We Choosing to Treat? Am J Orthop (Belle Mead NJ). 2017 Jan/Feb; 46(1):35-41.