When facts are called myths and myths are called facts, as is the case here, you're dealing with medical propaganda, ie deception.
The fact that mammograms are highly unsafe and exceedingly ineffective is answered with the spurious statement of some "gold standard." The gold standard of peace is the Nobel prize whose recipient is Obama who has directed to have killed hundreds of thousands of civilian lives. "Gold standard" of anything means only something important in a propaganda culture.
Medical science has long established that low dose medical xrays cause cancer, especially breast cancer (read: Rolf Hefti's "The Mammogram Myth" - more at TheMammogramMyth dot com). There are other great harms caused by it.