Human pathol. Human pathol. Clonal proliferation of cyclin D1-positive mantle lymphocytes in an asymptomatic patient: an early-stage event in the development or an indolent form of a mantle cell lymphoma? Espinet Blanca Solé Francesc Pedro Carme Garcia Mar Bellosillo Beatriz Salido Marta Florensa Lourdes Camacho Francisca I. Baró Teresa Lloreta Josep Serrano Sergi 2005 research-article