Previous Article Next Article Table of Contents Nature, Vol.585, No.7826, E17-E19, 2020 DOI10.1038/s41586-020-2675-0 Export Citation Reply to: Zebrafish prrx1a mutants have normal hearts Castroviejo N, Ocana OH, Rago L, Coskun H, Arcas A, Galceran J, Nieto MA Please enable JavaScript to view the comments powered by Disqus.