PTSD_Genes error

[pnrobinson]

http://nbviewer.jupyter.org/github/biolink/ontobio/blob/master/notebooks/PTSD_Genes.ipynb

this notebook shows the following error:

---------------------------------------------------------------------------
NameError                                 Traceback (most recent call last)
<ipython-input-2-8d320f7b4c8f> in <module>()
----> 1 proteins = wd.canned_query('genetic_association', doid)

NameError: name 'doid' is not defined