Dr. Charles Benjamin says he is one of about four abortion providers left in Philadelphia since Dr. Kermit Gosnell's arrest two years ago.
Benjamin says he has performed 40,000 abortions over a 30-year career. He says he doesn't do them after 21 weeks, or three weeks under the 24-week limit in Pennsylvania.
Gosnell is accused of performing illegal, late-term abortions and running a dangerously outdated clinic staffed by untrained workers.
Benjamin says he performs abortions after 17 weeks gestation in a hospital. That's in contrast to Gosnell, who performed about 1,000 abortions a year at his clinic.
On cross-examination, Benjamin acknowledged that his partner once had an abortion patient die of sepsis.