To cite this version : Lallemant, Lucile and Roussel, Nicolas and Fantozzi, Gilbert and Garnier, Vincent and Bonnefont, Guillaume and Douillard, Thierry and Durand, Bernard and Guillemet-Fritsch, Sophie and Chane-Ching, Jean-Yves and Garcia-Gutierez, Domingo and Aguilar-Garib, Juan Effect of amount