Bøe, Berte Grimsmo, Stephan M Röhrl, Tore Heier, Finnur Snorrason, and Lars Nordsletten. 2011. “A Prospective Randomized Study Comparing Electrochemically Deposited Hydroxyapatite and Plasma-Sprayed Hydroxyapatite on Titanium Stems”. Acta Orthopaedica 82 (1):13-19. https://doi.org/10.3109/17453674.2010.548027.