Ontogeny of IgM‐producing cells in the lymphoid organs of rainbow trout, Salmo gairdneri Richardson: an immuno‐ and enzyme‐histochemical study

1. Razquin, B.E.
2. Castillo, A.
3. López‐Fierro, P.
4. Alvarez, F.
5. Zapata, A.
6. Villena, A.J.