Eggermont, E., Vanderschuerenlodeweyckx, M., De Nayer, P.-P., Smeets, E., Vanacker, G., Cornette, C., Jaeken, J., Devlieger, H., Eeckels, R., & Beckers, C. (1984). The Thyroid-system Function in Preterm Infants of Postmenstrual Ages of 31 Weeks Or Less - Evidence for a Transient Lazy Thyroid System. Helvetica Paediatrica Acta, 39(3), 209-222. https://hdl.handle.net/2078.5/212248 (Original work published 1984)