Comment: Drug-related problem classification systems [7] (multiple letters)

1. Fernandez-Llimos, F.
2. Faus, M.J.
3. Culbertson, V.L.
4. Alvarez-De-Toledo, F.
5. Dago, A.
6. Eyaralar, T.
7. Gorostiza, I.
8. Salar, L.
9. Fité, B.
10. Van Mu, J.W.F.
11. Westerlund, L.O.T.
12. Hersberger, K.E.
13. Schaefer, M.A.