The aims of this study were to validate the use of filter paper to measure insulin-like growth factor-I (IGF-I) and to establish normal levels of IGF-I in children appearing healthy, from birth to 5 years of age in an African population.
Kouanda, S., Tonglet, R., de Coninck, V., Doulougou, B., Sondo, B., Ketelslegers, J.-M., & Robert, A. (2008). Reference values of IGF-I in children from birth to 5 years of age, in Burkina Faso, using blood samples on filter paper. Growth Hormone & I G F Research, 18(4), 345-352. https://doi.org/10.1016/j.ghir.2008.01.008 (Original work published 2008)