The Associated Press reports that the first research group to clone a human embryo may have used eggs provided by the group’s own researchers.

University of Pittsburgh cloning researcher Gerald Schatten said on Saturday that he resigned from the stem cell hub and ended his 20-month collaboration with Hwang because of the South Korean’s “unethical practices” in collecting eggs from a volunteer then misleading Schatten about it.

Schatten released a statement on Saturday announcing his resignation from the stem cell hub and has declined further comment.

Last year, Hwang’s team at Seoul National University became the first to successfully clone a human embryo. Since then, though, rumors have swirled that some of the 242 eggs used in the experiment were donated by subordinate scientists in Hwang’s famed cloning lab.

Scientists and ethicists said Monday that collecting eggs from an employee is unethical because of the potential for subordinates to feel coerced.

If this research is so great, why isn’t everyone doing it?

About 100,000 American women are injected annually with hormones to stimulate their ovaries to “superovulate” each year at fertility clinics in attempts to conceive babies. The process is arduous, and there’s a 1-in-50 chance a patient will over-respond to the hormones, causing complications.

Apparently 100,000 women just isn’t enough of a supply for the culture of death.