Comment on

• Improved delivery of inhaled steroids to the large and small airways.

  Leach CL. Leach CL. Respir Med. 1998 Jun;92 Suppl A:3-8. doi: 10.1016/s0954-6111(98)90211-6. Respir Med. 1998. PMID: 9850357 Review.
• Hydrofluoroalkane-134a beclomethasone dipropionate extrafine aerosol provides equivalent asthma control to chlorofluorocarbon beclomethasone dipropionate at approximately half the total daily dose.

  Davies RJ, Stampone P, O'Connor BJ. Davies RJ, et al. Respir Med. 1998 Jun;92 Suppl A:23-31. doi: 10.1016/s0954-6111(98)90214-1. Respir Med. 1998. PMID: 9850360 Clinical Trial.
• Safety of hydrofluoroalkane-134a beclomethasone dipropionate extrafine aerosol.

  Thompson PJ, Davies RJ, Young WF, Grossman AB, Donnell D. Thompson PJ, et al. Respir Med. 1998 Jun;92 Suppl A:33-9. doi: 10.1016/s0954-6111(98)90215-3. Respir Med. 1998. PMID: 9850361 Clinical Trial.