Fixation points within the main thoracic curve: does more instrumentation produce greater curve correction and improved results? - Sanders JO; Diab M; Richards SB; Lenke LG; Johnston CE; Emans JB; Sucato DJ; Erickson MA; Bridwell KH; McCarthy RE; Sarwark JF; Dormans JP; et al. (Spine (03622436), 2011)