Ultrastructural and morphometric changes in somatotropic cells following intraventricular administration of Met-enkephalin to rats.

1. Vázquez, R.
2. Carretero, J.
3. Sánchez, F.
4. Rubio, M.
5. Blanco, E.
6. Juanes, J.A.
7. Riesco, J.M.