R Invernizzi, S Comincini, E Travaglino, A Facoetti, I Ramajoli, and R Nano. 2003. “Defective Expression of the Dihydrofolate Reductase Gene in Patients With the 5q- Syndrome”. Haematologica 88 (4). Pavia, Italy, 471-74. https://doi.org/10.3324/%x.