2 results
Headaches Overview - Primary vs Secondary Headaches

What’s the Core Difference?
 • Primary headache = headache is
Headaches Overview ... - Primary vs Secondary ... ’s the Core Difference ... • Primary headache ... Primary #Secondary
Cold Urticaria
Prevalence - 0.05% in the population
Disease onset - Mostly 2nd to 4th decades of life
Causes
Cold Urticaria Prevalence ... skin contact with cold ... minutes after the cold ... , Hypotension, shock ... #table