Our PSLT workshop report is in press in Inhalation Toxicology, within one year of the workshop in Edinburgh. Future references to the paper will be through the DOI : 10.1080/08958378.2020.1735581. When the article is published online, it will be available at the following permanent link: https://doi.org/10.1080/08958378.2020.1735581 . A big hand for all experts and observers at the workshops, and our hosts at the University of Edinburgh!