AUTHOR=Sims Natalie A. , Martin T. John TITLE=Coupling Signals between the Osteoclast and Osteoblast: How are Messages Transmitted between These Temporary Visitors to the Bone Surface? JOURNAL=Frontiers in Endocrinology VOLUME=6 YEAR=2015 URL=https://www.frontiersin.org/journals/endocrinology/articles/10.3389/fendo.2015.00041 DOI=10.3389/fendo.2015.00041 ISSN=1664-2392