Applicability of the Spanish version of the Belloc's Physical Status Inquiry-PSI: a perceived health status measurement scale

1. Vázquez-Barquero, J.L.
2. García, J.
3. Rodríguez Campo, T.
4. Herrera Castanedo, S.
5. Montejo Candosa, J.
6. Gaite Pindado, L.
7. Iglesias García, C.