No formal interview after your application is approved. You are approved for the job and then have a scheduled phone call to ask questions pertaining to your role. The phone interview does not have implications on your hiring status.
I interviewed at Flatiron Health (London, England)
Interview
It was a fairly quick interview to begin with. They asked about T (tumour size), N (nodal involvement), M (metastasis) staging, and a specific cancer group. I would recommend learning about a specific cancer type and know the details.
Perfect interview...not like most who ask stupid questions...this more if a conversation than an interview. One of the best interviews I have ever had. Wish all interviews were like this.