Nodal patterning without Lefty inhibitory feedback is functional but fragile

Rogers KW, Gagnon JA, Pauli A, Zimmerman S, Aksel DC, Reyon D, Tsai SQ, Joung KJ, Schier AF. Nodal patterning without Lefty inhibitory feedback is functional but fragile. eLIFE. 2017;6 (e28785).