The gut is home to a bacterial ecosystem and a complex neural network some doctors have started to call the «second brain». (crossfitsanitas.com)
You could fit into this category if you needed emergency care and your insurance plan has a very large deductible, or out - of - network doctors sent you an extra invoice. (growingfamilybenefits.com)
Costs are lower when you go to an in - network doctor because insurance companies contract lower rates with in - network providers. (nerdwallet.com)