Symmetry constrained two Higgs doublet models João M. Alves, Francisco J. Botella, Gustavo C. Branco, Fernando Cornet-Gomez, Miguel Nebot and João P. Silva Eur. Phys. J. C, 78 8 (2018) 630 Published online: 07 August 2018 DOI: 10.1140/epjc/s10052-018-6116-2