Narrative Service: Integrate Clinical Trials and Preprints from PubPharm

[HermannKroll]

Load preprints and clinicial trials from PubPharm. We need to adjust the following skript to crawl the collections and convert the updated document data into a JSON format. The skript allows us to retrieve documents that have been modified since a specific data.

The attached skript must be adjusted and integrated into NarrativeAnnotation:

• integrate a proper main + argpaser
• argpase parameter: collections (string, required) is used to adjust the crawling URL
• argparse parameter: output collection for our service (a name how we want to call the collection)
• argpase last_update: date (YYYY-MM-DD) is used to adjust the crawling URL (data since when updated should be retrieved)

#283 has to be solved before (otherwise we cannot handle updated documents)

[HermannKroll]

UB has to evaluate the data quality (cocerning our last meeting).