Kotwicki Kotwicki T T Janusz Janusz P P Andrusiewicz Andrusiewicz M M Chmielewska Chmielewska M M Kotwicka Kotwicka M M Estrogen receptor 2 gene polymorphism in idiopathic scoliosis Estrogen receptor 2 gene polymorphism in idiopathic scoliosis Spine. The gene discussed is ESR2; the disease is idiopathic scoliosis.