International Osteoporosis Foundation and European Calcified Tissue Society Working Group. Recommendations for the screening of adherence to oral bisphosphonates. by Diez-Perez, A, Naylor, K, Abrahamsen, B, Agnusdei, D, Brandi, M, Cooper, C, Dennison, E, Eriksen, E, Gold, D, Guañabens, N, Hadji, P, Hiligsmann, M, Horne, R, Josse, R, Kanis, J, Obermayer-Pietsch, B, Prieto-Alhambra, D, Reginster, J, Rizzoli, R, Silverman, S, Zillikens, M, Eastell, R