La Crosse, Wisconsin — Dr. Kenneth Merkitch is seeing double these days.

He has been an obstetrician-gynecologist at Gundersen Lutheran Medical Center for 19 years, but he said he has never experienced a 24-hour on-call period like the one he put in on Friday and Saturday, when he delivered four sets of twins.

"It's something I don't think I'll see again," he said.

Merkitch delivered one other baby during his shift; he also could not recall ever delivering nine babies during a similar shift.
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