The BMP Antagonist Follistatin-Like 1 Is Required for Skeletal and Lung Organogenesis Sylva, Marc ; Li, Vivian S. W. ; Buffing, Anita A. A. ; van Es, Johan H. ; van den Born, Maaike ; van der Velden, Saskia ; Gunst, Quinn ; Koolstra, Jan Harm ; Moorman, Antoon F. M. ; Clevers, Hans ; van den Hoff, Maurice J. B. Abstract Publication: PLoS ONE Pub Date: August 2011 DOI: 10.1371/journal.pone.0022616 Bibcode: 2011PLoSO...622616S