Ruuska,Tarja Childhood Diarrhoea: A Longitudinal Study on the Occurrence,Etiology and Risk Factors of Acute Diarrhoea in Young Children / By Tarja Ruuska. - Finland: University of Tampere, 1991. - 180 pages; Illustrations; 25cm. Includes Illustrations. ISBN: 9514430093 Subjects--Topical Terms: Title. Dewey Class. No.: 610 / R894