Based on synonyms in MeSH and EMTREE databases and assuming hyphenated terms will retrieve hyphenated terms as well as those with spaces.
Pulmonary-and-activation-regulated-chemokine OR alternative-macrophage-activation-associated-CC-chemokine-1
OR AMAC-1 OR AMAC1 OR CCL18 OR CCL-18 OR chemokine-ligand-18 OR dendritic-cell-chemokine-1
OR Macrophage-Inflammatory-Protein-4 OR MIP-4 OR MIP4 OR Pulmonary-and-Activation-Regulated-Chemokine
OR small-inducible-cytokine-A18 OR small-inducible-cytokine-A-18
