Analysis-Developers of vapes for migraine, asthma will need to win over sceptics

 Analysis-Developers of vapes for migraine, asthma will need to win over sceptics

Analysis-Developers of vapes for migraine, asthma will need to win over sceptics

By Emma Rumney
LONDON (Reuters) – A handful of North American companies which see potential for vape-like devices to ease migraines and respiratory diseases such as asthma have a long road to convin…