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[&>div]:md:pr-4 [&>div:nth-of-type(1)]:w-full [&>div:nth-of-type(1)]:md:w-[24.22%] [&>div:nth-of-type(2)]:w-full [&>div:nth-of-type(2)]:md:w-[66.67%] [&>div:nth-of-type(3)]:w-full [&>div:nth-of-type(3)]:md:w-[11.11%] " data-testid="introductory-information"><div data-testid="sections-column-0" class="[&_h1]:text-bmj-primary-brand [&_p]:text-bmj-primary-brand [&_a]:text-[1.125rem] [&_h1]:mt-0 [&_h1]:inline [&_h1]:text-[1.3125rem] [&_p:nth-of-type(1)]:inline [&_p:nth-of-type(2)]:my-4 [&_p:nth-of-type(3)]:my-4 [&_p]:text-[1.125rem]"><h1>BMJ Open Respiratory Research</h1> <p>is an open access journal from BMJ and BTS, publishing papers across all areas of respiratory medicine, critical care and sleep medicine.</p> <p><strong>Impact Factor:</strong> 3.7<br /> <strong>Citescore:聽</strong>6.6<br /> <a href="/pages/about/">All metrics >></a></p> </div><div data-testid="sections-column-1" class="[&_p]:text-bmj-silver-800 hidden md:inline-block [&_a]:text-[1rem] [&_p:nth-of-type(1)]:mt-0 [&_p]:my-[0.7rem] [&_p]:mx-0 [&_p]:block [&_p]:text-[1rem] [&_img]:inline [&_img]:align-baseline"><p><em>BMJ Open Respiratory Research</em>聽is a peer-reviewed, open access journal publishing high quality papers across all areas of respiratory medicine, critical care and sleep medicine. The journal focuses on robustness of methodology and scientific rigour with less emphasis on novelty or perceived impact. It is indexed in MEDLINE, PubMed Central, Scopus and Web of Science (Science Citation Index-Expanded and Journal Citation Reports).</p> <p><em>BMJ Open Respiratory Research</em>聽is the open access companion to聽<em><a href="https://thorax.bmj.com/">Thorax</a></em>聽and is co-owned by the聽<a href="https://www.brit-thoracic.org.uk/">British Thoracic Society</a> and BMJ. The journal adheres to the highest possible industry standards concerning publication ethics. BTS members benefit from a 25% discount on the article processing charge (APC) when submitting to the journal.</p> <p>Access the journal's most-cited content聽<a href="/pages/top-cited-articles/">here</a>.</p> <p><strong>Call for papers!</strong> <em>BMJ Open Respiratory Research聽</em>invites submissions for the following topic collection:</p> <ul> <li><a href="/pages/topic-collection-air-pollution-and-respiratory-health" target="_blank" rel="noopener">Air Pollution and Respiratory Health: Measuring Impact and Supporting Mitigation</a></li> </ul> <p>See all of our topic collections <a href="/pages/topic-collections">here.</a></p> </div><div data-testid="sections-column-2" class="!mt-0 !w-auto"><a href="/content/current" class="bg-bmj-primary-brand decoration-none mb-8 block cursor-pointer rounded-[0.125rem] py-[0.625rem] px-[1.25rem] text-center text-white md:hidden">Current Issue</a><a href="/content/current" class="mb-8 flex justify-center md:mb-0"><img 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h-4 align-[-3px]" xmlns="http://www.w3.org/2000/svg" version="1.1" id="Layer_1" x="0px" y="0px" viewBox="0 0 32 50" enable-background="new 0 0 32 50" width="10px"><g id="XMLID_1_"><path id="XMLID_2_" fill="#E3721F" d="M28.5,25.863V14.064C28.5,7.136,23.015,1.5,16,1.5C8.987,1.5,3.5,7.136,3.5,14.064v1.457h5 v-1.457c0-4.154,3.296-7.532,7.5-7.532c4.204,0,7.5,3.379,7.5,7.532v6.877c-2-1.313-4.761-2.081-7.547-2.081 c-8.271,0-14.961,6.646-14.961,14.818c0,8.172,6.749,14.821,15.02,14.821c8.27,0,14.884-6.649,14.884-14.821 C30.895,30.808,30.5,28.135,28.5,25.863z M16.032,43.467c-5.463,0-9.906-4.391-9.906-9.789s4.444-9.786,9.906-9.786 c5.461,0,9.904,4.388,9.904,9.786S21.492,43.467,16.032,43.467z"></path><ellipse id="XMLID_8_" fill="#E3721F" cx="16.03" cy="33.723" rx="4.203" ry="4.152"></ellipse></g></svg></p></div><div class="pb-8 leading-6 [&:last-of-type]:pb-4 sm:[&:last-of-type]:pb-8" data-testid="article-1"><p class="m-0 uppercase" data-testid="article-label-1">Respiratory epidemiology:</p><a 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c5.461,0,9.904,4.388,9.904,9.786S21.492,43.467,16.032,43.467z"></path><ellipse id="XMLID_8_" fill="#E3721F" cx="16.03" cy="33.723" rx="4.203" ry="4.152"></ellipse></g></svg></p></div><div class="pb-8 leading-6 [&:last-of-type]:pb-4 sm:[&:last-of-type]:pb-8" data-testid="article-2"><p class="m-0 uppercase" data-testid="article-label-2">Paediatric lung disease:</p><a class="pr-2" href="/content/12/1/e003044" data-testid="article-link-2">Changes in respiratory viruses in infancy during the SARS-CoV-2 pandemic: a prospective cohort study</a><p class="m-0 whitespace-nowrap [&&]:text-[0.875rem]" data-testid="article-date-2">26 March 2025<svg class="ml-2 box-content inline-block h-4 align-[-3px]" xmlns="http://www.w3.org/2000/svg" version="1.1" id="Layer_1" x="0px" y="0px" viewBox="0 0 32 50" enable-background="new 0 0 32 50" width="10px"><g id="XMLID_1_"><path id="XMLID_2_" fill="#E3721F" d="M28.5,25.863V14.064C28.5,7.136,23.015,1.5,16,1.5C8.987,1.5,3.5,7.136,3.5,14.064v1.457h5 v-1.457c0-4.154,3.296-7.532,7.5-7.532c4.204,0,7.5,3.379,7.5,7.532v6.877c-2-1.313-4.761-2.081-7.547-2.081 c-8.271,0-14.961,6.646-14.961,14.818c0,8.172,6.749,14.821,15.02,14.821c8.27,0,14.884-6.649,14.884-14.821 C30.895,30.808,30.5,28.135,28.5,25.863z M16.032,43.467c-5.463,0-9.906-4.391-9.906-9.789s4.444-9.786,9.906-9.786 c5.461,0,9.904,4.388,9.904,9.786S21.492,43.467,16.032,43.467z"></path><ellipse id="XMLID_8_" fill="#E3721F" cx="16.03" cy="33.723" rx="4.203" ry="4.152"></ellipse></g></svg></p></div><div class="pb-8 leading-6 [&:last-of-type]:pb-4 sm:[&:last-of-type]:pb-8" data-testid="article-3"><p class="m-0 uppercase" data-testid="article-label-3">Respiratory infection:</p><a class="pr-2" href="/content/12/1/e001983" data-testid="article-link-3">Machine learning-based model for predicting all-cause mortality in severe pneumonia</a><p class="m-0 whitespace-nowrap [&&]:text-[0.875rem]" data-testid="article-date-3">22 March 2025<svg class="ml-2 box-content inline-block h-4 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href="/content/12/1/e002541" data-testid="article-link-4">Psychosocial experience of living with severe and uncontrolled asthma as a young adult: a qualitative synthesis</a><p class="m-0 whitespace-nowrap [&&]:text-[0.875rem]" data-testid="article-date-4">22 March 2025<svg class="ml-2 box-content inline-block h-4 align-[-3px]" xmlns="http://www.w3.org/2000/svg" version="1.1" id="Layer_1" x="0px" y="0px" viewBox="0 0 32 50" enable-background="new 0 0 32 50" width="10px"><g id="XMLID_1_"><path id="XMLID_2_" fill="#E3721F" d="M28.5,25.863V14.064C28.5,7.136,23.015,1.5,16,1.5C8.987,1.5,3.5,7.136,3.5,14.064v1.457h5 v-1.457c0-4.154,3.296-7.532,7.5-7.532c4.204,0,7.5,3.379,7.5,7.532v6.877c-2-1.313-4.761-2.081-7.547-2.081 c-8.271,0-14.961,6.646-14.961,14.818c0,8.172,6.749,14.821,15.02,14.821c8.27,0,14.884-6.649,14.884-14.821 C30.895,30.808,30.5,28.135,28.5,25.863z M16.032,43.467c-5.463,0-9.906-4.391-9.906-9.789s4.444-9.786,9.906-9.786 c5.461,0,9.904,4.388,9.904,9.786S21.492,43.467,16.032,43.467z"></path><ellipse id="XMLID_8_" fill="#E3721F" cx="16.03" cy="33.723" rx="4.203" ry="4.152"></ellipse></g></svg></p></div></div></div></div></div><div class="bg-white p-4"><div data-testid="altmetrics_data" class="my-2 mx-0 md:mt-12 md:mr-4 md:mb-0 md:ml-0 [& div]:flex [&>div]:flex-wrap [&>div]:flex-[1 1 50%] relative"><div class="border-bmj-primary-brand relative flex items-center justify-center border p-4 md:justify-start md:border-0"><div class="undefined flex items-center justify-center md:justify-start"><h2 class="m-0 inline-block p-0 text-center text-[1.75rem]" data-testid="title">Altmetrics</h2></div><button data-testid="expandable-button" class="absolute right-4 block border-0 bg-transparent p-0 md:hidden"><img src="/next-resources/minus-button.svg" alt="expandable-button" aria-expanded="true" role="button" class="hidden w-[15px]" /><img src="/next-resources/plus-button.svg" alt="expandable-button" 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data-testid="article-label-10.1136/bmjresp-2016-000170">Guideline:</p><a class="pr-2" href="/content/4/1/e000170" data-testid="article-link-10.1136/bmjresp-2016-000170">British Thoracic Society Guideline for oxygen use in adults in healthcare and emergency settings </a><p class="m-0 whitespace-nowrap [&&]:text-[0.875rem]" data-testid="article-date-10.1136/bmjresp-2016-000170">19 January 2023<svg class="ml-2 box-content inline-block h-4 align-[-3px]" xmlns="http://www.w3.org/2000/svg" version="1.1" id="Layer_1" x="0px" y="0px" viewBox="0 0 32 50" enable-background="new 0 0 32 50" width="10px"><g id="XMLID_1_"><path id="XMLID_2_" fill="#E3721F" d="M28.5,25.863V14.064C28.5,7.136,23.015,1.5,16,1.5C8.987,1.5,3.5,7.136,3.5,14.064v1.457h5 v-1.457c0-4.154,3.296-7.532,7.5-7.532c4.204,0,7.5,3.379,7.5,7.532v6.877c-2-1.313-4.761-2.081-7.547-2.081 c-8.271,0-14.961,6.646-14.961,14.818c0,8.172,6.749,14.821,15.02,14.821c8.27,0,14.884-6.649,14.884-14.821 C30.895,30.808,30.5,28.135,28.5,25.863z M16.032,43.467c-5.463,0-9.906-4.391-9.906-9.789s4.444-9.786,9.906-9.786 c5.461,0,9.904,4.388,9.904,9.786S21.492,43.467,16.032,43.467z"></path><ellipse id="XMLID_8_" fill="#E3721F" cx="16.03" cy="33.723" rx="4.203" ry="4.152"></ellipse></g></svg></p></div><div class="pb-8 leading-6 [&:last-of-type]:pb-4 sm:[&:last-of-type]:pb-8" data-testid="article-10.1136/bmjresp-2019-000420"><p class="m-0 uppercase" data-testid="article-label-10.1136/bmjresp-2019-000420">Guidelines:</p><a class="pr-2" href="/content/6/1/e000420" data-testid="article-link-10.1136/bmjresp-2019-000420">Guidelines on the management of acute respiratory distress syndrome </a><p class="m-0 whitespace-nowrap [&&]:text-[0.875rem]" data-testid="article-date-10.1136/bmjresp-2019-000420">21 June 2023<svg class="ml-2 box-content inline-block h-4 align-[-3px]" xmlns="http://www.w3.org/2000/svg" version="1.1" id="Layer_1" x="0px" y="0px" viewBox="0 0 32 50" enable-background="new 0 0 32 50" width="10px"><g id="XMLID_1_"><path 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</a><p class="m-0 whitespace-nowrap [&&]:text-[0.875rem]" data-testid="article-date-10.1136/bmjresp-2020-000575">15 November 2022<svg class="ml-2 box-content inline-block h-4 align-[-3px]" xmlns="http://www.w3.org/2000/svg" version="1.1" id="Layer_1" x="0px" y="0px" viewBox="0 0 32 50" enable-background="new 0 0 32 50" width="10px"><g id="XMLID_1_"><path id="XMLID_2_" fill="#E3721F" d="M28.5,25.863V14.064C28.5,7.136,23.015,1.5,16,1.5C8.987,1.5,3.5,7.136,3.5,14.064v1.457h5 v-1.457c0-4.154,3.296-7.532,7.5-7.532c4.204,0,7.5,3.379,7.5,7.532v6.877c-2-1.313-4.761-2.081-7.547-2.081 c-8.271,0-14.961,6.646-14.961,14.818c0,8.172,6.749,14.821,15.02,14.821c8.27,0,14.884-6.649,14.884-14.821 C30.895,30.808,30.5,28.135,28.5,25.863z M16.032,43.467c-5.463,0-9.906-4.391-9.906-9.789s4.444-9.786,9.906-9.786 c5.461,0,9.904,4.388,9.904,9.786S21.492,43.467,16.032,43.467z"></path><ellipse id="XMLID_8_" fill="#E3721F" cx="16.03" cy="33.723" rx="4.203" ry="4.152"></ellipse></g></svg></p></div><div class="pb-8 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