Reduced male births during the major Italian places

Reduced male births during the major Italian places P. Astolfi, L.A. Zonta, Less men births inside the big Italian places, Person Breeding, Frequency fourteen, Matter twelve, 1 December 1999, Profiles 3116–3119, Conceptual This new downwards trend on the sex proportion at the delivery who may have occurred in several nations over the last thirty years […]