An immunocytochemical and ultrastructural study of the larval anterior intestine of the frog Rana temporaria, with especial reference to endocrine cells

1. Bodegas, M.E.
2. Villaro, A.C.
3. Burrell, M.A.
4. Rovira, J.
5. Valverde, E.
6. De Zarate, A.O.
7. Sesma, P.