I applied through a recruiting agency, who submitted a cv and cover letter for me. Initially I was asked to complete a writing test, which included reviewing a document, and writing an article about the release of a new drug. I was then invited to be interviewed, and had a panel of three interviewers (quite chatty, they had obviously read my cv and just asked clarifying/more general questions). After the formal interview a different member of the team came in (just me and them) and we had a more informal chat about the company which I found really helpful.