ESR1 and idiopathic scoliosis: Inoue Inoue M M Minami Minami S S Nakata Nakata Y Y Kitahara Kitahara H H Otsuka Otsuka Y Y Isobe Isobe K K Association between estrogen receptor gene polymorphisms and curve severity of idiopathic scoliosis Association between estrogen receptor gene polymorphisms and curve severity of idiopathic scoliosis Spine.