Antibody:	iNOS/NOS2 antibody
Detection system:	horseradish peroxidase

Structure	Level	Pattern	Image	Note
TS19: enteric nervous system	Present	Regionally restricted	1A	Expression in neuronal cells of presumptive enteric nervous system in area of the duodenum.

Structure	Level	Pattern	Image	Note
TS19: duodenum mesenchyme	Present	Regionally restricted	1A inset	Expression in outer mesenchyme of the duodenum.

Structure	Level	Pattern	Image	Note
TS20: enteric nervous system	Present	Regionally restricted	2A	Expression increase in intestinal ganglia. Marked expression in region of prospective myenteric plexus, frequently in single cells, but sometimes in groups of 3 or 4 cells.

Structure	Level	Pattern	Image	Note
TS20: enteric nervous system	Present	Regionally restricted	2C	Authors report co-expression with HNK-1 (B3gat1).

Structure	Level	Pattern	Image	Note
TS20: enteric nervous system	Present	Regionally restricted	2E	Authors report expression correlates with initial expression for Vip.

Structure	Level	Pattern	Image	Note
TS22: enteric nervous system	Present	Regionally restricted		Authors report a similar pattern of expression is seen at E14.

Structure	Level	Pattern	Image	Note
TS24: enteric nervous system	Weak		3A

Structure	Level	Pattern	Image	Note
TS24: myenteric nerve plexus	Present		3B	Simolar expression to that of Nos1 in region of myenteric plexus.

Structure	Level	Pattern	Image	Note
TS26: myenteric nerve plexus	Absent		4A	Author state that expression has vanished.