Johannsen, T.H. Andersson, A.-M. Ahmed, S.F. De Rijke, Y.B. Greaves, R.F. Hartmann, M.F. Hiort, O. Holterhus, P.-M. Krone, N.P. Kulle, A. Ljubicic, M.L. Mastorakos, G. McNeilly, J. Pereira, A.M. Saba, A. Wudy, S.A. Main, K.M. Juul, A. Working Group 3 'Harmonisation of Laboratory Assessment' of the European Cooperation in Science Technology (COST) Action BM1303 'DSDnet' Work Package 5 'Diagnostics Laboratory Analysis' of the European Reference Network on Rare Endocrine Conditions, Peptide hormone analysis in diagnosis and treatment of differences of sex development: Joint position paper of EU cost action 'SDnet' and european reference network on rare endocrine conditions, European Journal of Endocrinology, (182), 2020, BioScientifica Ltd, 0804-4643, 1479-683X