المؤلفون: Bergoñón Fuster, S., Guerrero García, T., Cobos Carbó, A., Ordás Hernández, C.

المصدر: Atención Primaria ; volume 33, issue 1, page 50-51 ; ISSN 0212-6567

الاتاحة: http://dx.doi.org/10.1016/s0212-6567(04)78878-2
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