These sorts of broad cohort studies wind up being enormously useful. The Scandinavian study keeps returning good results even today. I would, mildly speculativ

These sorts of broad cohort studies wind up being enormously useful. The Scandinavian study keeps returning good results even today. I would, mildly speculatively, hazard that enormous cost overruns are permissible and acceptable to the tune of 1000% if we could execute a similar cohort study in the entire United States for 30-50 years. The wealth of knowledge they can reveal is absolutely astounding and informs post/ante/neo-natal care to the point of redefining key practices.