1. Environment and animal health in piglet production;Bäckström;Acta Vet. Scand.,1973
2. Clinical study of mastitis-metritis-agalactia in sows in Illinois;Bäckström;J. Am. Vet. Med. Assoc.,1984
3. Preweaning mortality in pigs. II. The perinatal period;Bille;Nord. Veterinaermed.,1974
4. Preweaning mortality in pigs. III. Traumatic injuries;Bille;Nord. Veterinaermed.,1974
5. Histomorphological studies of the perinatal pig: The unaffected pig;Björklund;Acta Vet. Scand.,1987