P.P.F.

Information accumulated from more than 10,000 women during 90,000 woman-months of observation, said P.P.F.'s medical committee, "indicates that the modern intrauterine contraceptive devices are both safe and effective."

Said P.P.F.'s president, Dr. Alan Guttmacher: "Intra-uterine devices are being subjected to as much scientific testing as the birth control pills."