In order to get sufficient eggs for the
in vitro fertilization process, a woman is injected with medications using one of several IVF medications to help develop multiple egg development, the eggs are developed in fluid filled sacs called follicles, measured by ultrasound,and hormone levels, the gently retrived from the follicle wall,
Your friend in theory should be able to do this, she will require testing, as to how well her remaining ovary is functioning, As you likely know its possible for