Llorenç Caballería1
, Ma Antonia Auladell1
, Pere Torán2
, Guillem Pera2
, Dolores Miranda3
, Alba Alumà4
, José Dario Casas5
, Laura Muñoz2
, Carmen Sanchez6
, Albert Tibau7
, Marti Birules8
, Santiago Canut9
, Jesús Bernad10
, Josep Aubà11
, Miren Maite Aizpurua12
and Enriqueta Alcaraz7 
1
Primary Healthcare Centre Premià de Mar, Catalan Health Institute, IDIAP Jordi Gol, La Plaça 93, 08330 Premià de Mar, Spain
2
Primary Healthcare Research Support Unit Barcelonés Nord i Maresme. IDIAP Jordi Gol, Camí del Mig 36, 08303 Mataró, Spain
3
Radiology Department, Primary Healthcare El Maresme, Catalan Health Institute, Camí del Mig 36, 08303 Mataró, Spain
4
Laboratory Department, Primary Healthcare Centre Dr. Robert, Catalan Health Institute, C/Pl. de la Medicina s/n, 08911 Badalona, Spain
5
Radiology Department, Primary Healthcare Badalona, Catalan Health Institute, C/Pl. de la Medicina s/n, 08911 Badalona, Spain
6
Radiology Department, Primary Healthcare Santa Coloma de Gramanet, Catalan Health Institute, C/Major, 49-53, 08921 Santa Coloma de Gramanet, Spain
7
Primary Healthcare Centre Premià de Mar, Catalan Health Institute, C/La Plaça 93, 08330 Premià de Mar, Spain
8
Primary Healthcare Centre Poble Nou, Catalan Health Institute, C/Lope de Vega 132, 08005 Barcelona, Spain
9
Primary Healthcare Centre Vilassar de Dalt, Catalan Health Institute, C/Plaça de la Vila 8, 08339 Vilassar de Dalt, Spain
10
Primary Healthcare Centre Vilassar de Mar, Catalan Health Institute, C/Santa Maria 59-79, 08340 Vilassar de Mar, Spain
11
Primary Healthcare Barcelonés Nord i Maresme, Catalan Health Institute, Sardana s/n, 08915 Badalona, Spain
12
Primary Healthcare Centre Gatassa, Catalan Health Institute, Camí del Mig 36 (4a planta), 08303 Mataró, Spain