v0.1.8: Merge pull request #4 from Thomas-S-Allen/master

Fixed no collections bug

v0.1.7

Merge pull request #3 from Thomas-S-Allen/master

more robust to missing data

v0.1.6: Merge pull request #2 from Thomas-S-Allen/master

Bug fix for records missing titles and abstracts.

v0.1.5

Merge pull request #1 from Thomas-S-Allen/master

Update output to be .tsv

v0.1.4

Improved robustness for large input.