Discussion (day 2 session 3): Ethics of choosing the sex of our offspring. by Golombok, S, Schulman, J, Dahl, E, McLean, S, Doyal, L, Lotts, J, Lockwood, G, Bhargava, P, McMahan, J, Alikani, M, Lotz, M, Te Velde, E, Savulescu, J