1. Evolution of the sacrum in hominoids;Abitbol;Am J Phys Anthropol,1987
2. Pelvimetry and cephalometry among Filipino women and newborn babies;Acosta-Sison;Philippine J Sci,1919
3. Fracture of coccyx and dystocia;Anon;J Am Med Assoc,1946
4. Dynamic MRI of the pelvic floor muscles in an upright sitting position;Bø;Neurourol Urodyn,2001
5. Middle Pleistocene lower back and pelvis from an aged human individual from the Sima de los Huesos site, Spain;Bonmatí;Proc Natl Acad Sci USA,2010