McGarvey, L. P., Birring, S. S., Morice, A. H., Dicpinigaitis, P. V., Pavord, I. D., Schelfhout, J., Nguyen, A. M., Li, Q., Tzontcheva, A., Iskold, B., Green, S. A., Rosa, C. L., Muccino, D. R., Smith, J. A., & , (2022). efficacy and safety of gefapixant, a P2X3 receptor antagonist, in refractory chronic cough and unexplained chronic cough (COUGH-1 and COUGH-2): results from two double-blind, randomised, parallel-group, placebo-controlled, phase 3 trials. Lancet, 399(10328), 909–923. http://access.bl.uk/ark:/81055/vdc_100152617419.0x000048