Quantitative modification of the testicular structure in pigs fed with anabolic doses of clenbuterol Alfonso Blanco, Emilio Artacho-Pérula, Rafaela Flores-Acuña, Eduardo Agüera and Jose G. Monterde Vet. Res., 33 1 (2002) 47-53 DOI: 10.1051/vetres:2001005