CellCards: A curated database of lung cell types. The Lung CellCards browser is shown (left) with displayed curated cell types, definitions, literature, markers, and link-outs to LungMAP.net (right). Link outs include all associated LungMAP database entities (gene and protein information, molecular omics datasets, and images). Interactive query of the integrated CellCards single-cell atlas (top) for supervised annotation and exploration of user-supplied single-cell RNAseq datasets (Azimuth, middle) and exploration of the integrated reference datasets (ShinyCell, right).