Scientific and Resource Library × Sign in/register to unlock all features For access to the 'Scientific and resource library', sign into your account or register for one so that you can view and download the full range of materials. Cancel Sign in Back Overlapping pathways infographic PDF An infographic displaying the overlapping and changing pathways in patients with severe asthma. This PDF is a downloadable resource. Click to open the file in a new browser tab and download. Open PDF RELATED RESOURCES Like this page? We have a host of other resources available in the ‘Scientific and Resource Library’ where you can find out more.