@article{theodorou_theodorou_kakitsubata_gelalis_tsifetaki_2021,  title={Advanced ankylosing spondylitis: a multisite, multimodality densitometric analysis for investigation of bone loss in the axial and appendicular skeleton},  volume={67},  ISSN={0104-4230},  url={https://doi.org/10.1590/1806-9282.20210683},  DOI={10.1590/1806-9282.20210683},  number={11},  journal={Revista da Associação Médica Brasileira},  publisher={Associação Médica Brasileira},  author={Theodorou, Stavroula and Theodorou, Daphne and Kakitsubata, Yousuke and Gelalis, Ioannis and Tsifetaki, Niki},  year={2021},  month={Nov},  pages={1627–1632} }