Contents Volume 132 2003

Jonathan Mkumbira1,2, Linley Chiwona-Karltun3,4, Ulf Lagercrantz2, Nzola Meso Mahungu5, John Saka6, Albert Mhone5, Mpoko Bokanga7, Leon Brimer8, Urban Gullberg2,∗ & Hans Rosling3 1Bvumbwe Agricultural Research Station, P.O. Box 5748, Limbe, Malawi; 2Department of Plant Biology, Swedish University of Agricultural Sciences, Box 7080, SE-750 05 Uppsala, Sweden; 3Division of International Health, Department of Public Health Sciences, Karolinska Institute, SE-171 76 Stockholm, Sweden; 4Nutrition Unit, Department of Medical Sciences, Uppsala University, Dag Hammarskjölds väg 21, SE-752 37 Uppsala, Sweden; 5IITA/SARRNET, Chitedze Research Station, Box 30258, Lilongwe 3, Malawi; 6Department of Chemistry, Chancellor College, University of Malawi, Box 280, Zomba, Malawi; 7International Institute for Tropical Agriculture, Oyo Road, P.M.B. 5320, Ibadan, Nigeria; 8Department of Pharmacology and Pathobiology, The Royal Veterinary and Agricultural University, 13 Bülowsvej, DK-1870 Frederiksberg C., Denmark; (∗author for correspondence)