Therap. adv. in gastroenterol. Therap. adv. in gastroenterol. The combination of quantitative faecal occult blood test and faecal calprotectin is a cost-effective strategy to avoid colonoscopies in symptomatic patients without relevant pathology Lué A. Hijos G. Sostres C. Perales A. Navarro M. Barra M.V. Mascialino B. Andalucia C. Puente J.J. Lanas Á. Universidad de Zaragoza Gomollon F. Universidad de Zaragoza 2020 research-article