B-B-B-BABY BOOM--In affluent Orange County, where fertility...

B-B-B-BABY BOOM--In affluent Orange County, where fertility treatment advances have created a veritable multiple-birth capital of the world, Consolacion Amante made it into the record books all by herself (B1) at UCI Medical Center. . . . The 28-year-old Santa Ana woman Wednesday delivered the third set of quadruplets born in Orange County in recent years--but the first without fertility treatments. The odds against it are more than 500,000 to one, say UCI doctors.