3Roussouly P, Gollogly S, Berthonnaud E, et al. Classification of the normal variation in the sagittal alignment of the human lumbar spine and pelvis in the standing position[ J]. Spine,2005,30(2) :346-353.
4Legaye J, Duval Beaupere G. Pelvic incidence: a fundamental pelvic parameter for Three dimensional regulation of spinal sagittal curves [ J]. Eur Spine Journal,1998,7 (2) :99-103.
