The risk of selenium deficiency in Malawi is large and varies over multiple spatial scales oleh Felix P. Phiri, E. Louise Ander, Elizabeth H. Bailey, Benson Chilima, Allan D. C. Chilimba, Jellita Gondwe, Edward J. M. Joy, Alexander A. Kalimbira, Diriba B. Kumssa, R. Murray Lark, John C. Phuka, Andrew Salter, Parminder S. Suchdev, Michael J. Watts, Scott D. Young, Martin R. Broadley