Drupal-Bibcite0<style face="normal" font="default" size="100%">Two additional midline barriers function with midline lefty1 expression to maintain asymmetric Nodal signaling during left-right axis specification in zebrafish.</style><style face="normal" font="default" size="100%">Two additional midline barriers function with midline lefty1 expression to maintain asymmetric Nodal signaling during left-right axis specification in zebrafish.</style>