Letters Epidemic thunderstorm asthma Thunderstorm asthma: controlling (deadly) grass pollen allergy BMJ 2018; 360 doi: https://doi.org/10.1136/bmj.k432 (Published 06 February 2018) Cite this as: BMJ 2018;360:k432 Article Related content Metrics Responses Peer review Related articles Research Stormy weather: a retrospective analysis of demand for emergency medical services during epidemic thunderstorm asthma Published: 13 December 2017; BMJ 359 doi:10.1136/bmj.j5636