PARP inhibiitors for cancer treatment – article

Overview article of the drug class PARP inhibitors
How do they work? What are the drugs that are now available (or close to approval)?
About 700 words.
Please list references after article so I can see you have used references that are not Wikipedia.
Project Type: One-time project
You will be asked to answer the following questions when submitting a proposal:
1. Are you familiar with drug actions in the human body?
2. Do you have experience writing about biochemistry and/or medicine?