follow up
• pursue or investigate something further.
• "I decided to follow up the letters with phone calls"
Similar:
investigate,
research,
find out about,
look into,
dig into,
delve into,
make inquiries into,
inquire about,
ask questions about,
pursue,
chase up,
check out,
scope out,
follow-up
noun
• a continuation or repetition of something that has already been started or done.
• "a follow-up study of the same interviewees after retirement"
