When do obstetricians recommend delivery for a high-risk preterm growth-retarded fetus?

Danielian, P.; Dawson, A.; Whittle, M.; Lilford, Rj; Tuffnell, D.; Soothill, P.; Beattie, B.; Mires, G.; Calder, A.; Bashir, T.; Lindow, S.; Johal, W.; Neales, K.; Mason, G.; Walker, J.; Taylor, D.; Narayan, H.; Walkinshaw, S.; Elder, M.; Frusca, Tiziana