Chamberlain Mitchell, S A F, Garrod, R, Clark, L, Douiri, A, Parker, S M, Ellis, J, Fowler, S J, Ludlow, S, Hull, J H, Chung, K F, Lee, K K, Bellas, H, Pandyan, A & Birring, S S 2017, ' Physiotherapy, and speech and language therapy intervention for patients with refractory chronic cough : A multicentre randomised control trial ', Thorax, vol. 72, no. 2, pp. 129-136 . https://doi.org/10.1136/thoraxjnl-2016-208843 Chamberlain Mitchell, S A F, Garrod, R, Clark, L, Douiri, A, Parker, S M, Ellis, J, Fowler, S J, Ludlow, S, Hull, J H, Chung, K F, Lee, K K, Bellas, H, Pandyan, A & Birring, S S 2017, ' Physiotherapy, and speech and language therapy intervention for patients with refractory chronic cough : a multicentre randomised control trial ', Thorax, vol. 72, no. 2, pp. 129-136 . https://doi.org/10.1136/thoraxjnl-2016-208843