Erratum. (18th March 2019) - Agbota, Gino; Accrombessi, Manfred; Cottrell, Gilles; Martin-Prével, Yves; Milet, Jacqueline; Ouédraogo, Smaïla; Courtin, David; Massougbodji, Achille; Garcia, André; Cot, Michel; Briand, Valérie