Di Paolo, E. R., Spaggiari, S., Pannatier, A., Sadeghipour, F., Rochat, I., & Hafen, G. . M. (2015). Stop using the flotation technique and start weighing salbutamol pressurised metered-dose inhalers without dose counters. Swiss Medical Weekly, 145(3132), w14162. https://doi.org/10.4414/smw.2015.14162