Medical services in the field of headache, pediatric headache, migraine, concussion, epilepsy, and sleep disorder care; providing medical advice in the field of headache, pediatric headache, migraine, concussion, epilepsy, and sleep disorder care; provision of medical services by health care professionals via the internet or telecommunication networks in the field of headache, pediatric headache, migraine, concussion, epilepsy, and sleep disorder care; internet-based medical diagnosis pertaining to headaches, pediatric headaches, migraines, concussions, epilepsy, and sleep disorders, namely, information regarding treatment of headaches, pediatric headaches, migraines, concussions, epilepsy, and sleep disorders and possible treatments and likely outcomes; medical diagnosis and treatment of headaches, pediatric headaches, migraines, concussions, epilepsy, and sleep disorders; health care services, namely, headache, pediatric headache, migraine, concussion, epilepsy, and sleep disorder care; telemedicine services in the field of headache, pediatric headache, migraine, concussion, epilepsy, and sleep disorder care; medical and health screening services in the field of headache, pediatric headache, migraine, concussion, epilepsy, and sleep disorder care; medical testing for diagnostic or treatment purposes in the field of headaches, pediatric headaches, migraines, concussions, epilepsy, and sleep disorders; health care services for treating headaches, pediatric headaches, migraines, concussions, epilepsy, and sleep disorders