3 ms·
Randomized controlled trials: when the gold standard leaves you with fool’s gold
- yamrzou 4y ago(2020)
- amanaplanacanal 4y agoWhen vitamin D comes up, I always wonder if levels are merely a marker for how much time a person spends outdoors. In other words, it might not be vitamin D levels themselves, but outdoor exercise which might be the factor in health outcomes.