Paola Bianchi, Elisa Fermo and Alberto Zanella (2012) “Reply to ‘Flow cytometry test for hereditary spherocytosis’. Haematologica. 2012;97(12):e47”, Haematologica. Pavia, Italy, 97(12), pp. e50-e51. doi: 10.3324/haematol.2012.075150.