Are world-class cyclists really more efficient? [1] (multiple letters)

1. Jeukendrup, A.
2. Martin, D.T.
3. Gore, C.J.
4. Lucia, A.
5. Hoyos, J.
6. Pérez, M.
7. Santalla, A.
8. Rabadán, M.
9. Chicharro, J.L.