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. Reeve et al.|Osteoporosis International|1995Cited by 111
European semi-anthropomorphic phantom for the cross-calibration of peripheral bone densitometers: assessment of precision accuracy and stabilityJohn Pearson, P. Schneider, P. Rüegsegger et al.|Bone and Mineral|1994Cited by 50