Sonic Hedgehog and other signaling pathways and lung repair

http://www.ncbi.nlm.nih.gov/pubmed/20363851

Am J Physiol Lung Cell Mol Physiol. 2010 Jun;298(6):L715-31. Epub 2010 Apr 2.
Epithelial repair mechanisms in the lung. Crosby LM, Waters CM.
Departments of Physiology, University of Tennessee Health Science Center, Memphis, TN