Plasma rich in growth factors (PRGF) in the treatment of cervical and lumbar back pain: A retrospective observational clinical study

1. Kirchner, F.
2. Milani, I.
3. Martínez, À.
4. Kirchner-Bossi, N.
5. Prado, R.
6. Padilla, S.
7. Anitua, E.