@ARTICLE{
author={Bruyn GAW,Naredo Esperanza,Moller Ingrid,Moragues C,Garrido J,de Bock GH,D'Agostino Maria-Antonietta,Filippucci Emilio,Iagnocco Annamaria,Backhaus Marina,Swen WAA,Balint Peter V,Pineda Carlos,Milutinovic Sanja R,Kane D,Kaeley G,Narvaez FJ,Wakefield Richard J,Narvaez JA,de Augustin J,Schmidt Wolfgang A},
year={2009},
title={Reliability of ultrasonography in detecting shoulder disease in patients with rheumatoid arthritis},
journal={ANNALS OF THE RHEUMATIC DISEASES},
volume={68},
number={3},
pages={357-361},
document_type={Article},
} 

@ARTICLE{
author={Salaffi F,Filippucci Emilio,Carotti M,Naredo Esperanza,Meenagh G,Ciapetti A,Savic Viktorija G,Grassi Walter},
year={2008},
title={Inter-observer agreement of standard joint counts in early rheumatoid arthritis: a comparison with grey scale ultrasonographya preliminary study},
journal={RHEUMATOLOGY},
volume={47},
number={1},
pages={54-58},
document_type={Article},
}