Cervicogenic headaches are secondary headaches that result from an fundamental problem. This sets them apart from Principal headaches, like migraine and cluster headaches. If I wish to refer to an entity which happens to be outlined given that the negation of A further entity by attaching "non-" it seems strange https://cold-therapy-neck-headach10875.wikipublicist.com/5470113/examine_this_report_on_cold_therapy_neck_headache_singapore