European semi-anthropomorphic spine phantom for the calibration of bone densitometers: Assessment of precision, stability and accuracy the European quantitation of osteoporosis study groupJohn Pearson, G. Wittenberg, J. Kalef-Ezras et al.|Osteoporosis International|1995Cited by 111
Bone Density Reduction in Various Measurement Sites in Men and Women with Osteoporotic Fractures of Spine and Hip: The European Quantitation of Osteoporosis StudyHeikki Kröger, John Pearson, Díaz Curiel M et al.|Calcified Tissue International|1999Cited by 98
European semi-anthropomorphic phantom for the cross-calibration of peripheral bone densitometers: assessment of precision accuracy and stabilityJohn Pearson, P. Schneider, J.C. Birkenhäger et al.|Bone and Mineral|1994Cited by 50
Tuberculosis of the thyroid gland.Jip Groen, J.C. Birkenhäger, Roland A. L. M. Stallaert et al.|PubMed|1988Cited by 3