1. Department of Endocrine Disorders & Bone Metabolism, Chair of Endocrinology, The Medical University of Lodz, 90-752 Lodz, Zeligowskiego 7/9, Poland.
2. Department of Endocrine Disorders & Bone Metabolism, Chair of Endocrinology, The Medical University of Lodz, 90-752 Lodz, Zeligowskiego 7/9, Poland