Collagenous colitis. Not such an infrequent disease

1. Rodriguez Munoz, S.
2. Gomez Berne, J.
3. Sanz Anquela, J.M.
4. Gimeno Esteras, E.
5. Sanz Millan, M.
6. Lima Montero, A.
7. Almendral Lopez, null
8. Luz, M.
9. Puras Tellaeche, A.
10. Del Villar Sordo, V.