Fig. 6. Graphs of the percent survival of P0 to P60 SCG neurones grown in either defined medium alone (control) or in medium supplemented with 10 ng/ml artemin, 10 ng/ml NGF or artemin plus NGF. The number of neurones surviving 24, 48, 72 and 92 hours after plating is expressed as a percentage of the number of neurones counted 3 to 6 hours after plating. The means and standard errors are shown (n=6-9 for each condition).