When they get older, Logan, Eli and Collin Penn may blanch at the notion they wore nail polish to their first news conference. But it is the only way their parents know how to tell the boys apart right now.
The identical triplets were born at North Shore University Hospital on Long Island, New York - an event so rare that an obstetrician estimated it might happen just once in 200 million births.
The triplets' mother, Allison Penn, was impregnated with just one embryo through in-vitro fertilization, said Dr Victor Klein, a specialist in multiple births and high-risk pregnancies who delivered the boys.
PHOTO :AP
That embryo split in half, and then one half of that split again, he said.
"This is the first one we're aware of in the literature in the country in which they only put back one embryo" and a woman gave birth to triplets, Klein said. "Most people put back two or three embryos, and you just never know."
Identical triplets are born at a rate between one in 60,000 and one in 200 million, depending on the research, Klein said.
Allison Penn, 31, said she and her husband, Tom, 46, had tried to have a baby since they got married about four years ago. Although she once thought of having several children, the disappointments over four years revised her dreams downward. They are thrilled to have had triplets.
To help tell them apart, the boys have a dot of maroon nail polish on their fingers. Logan has a mark on his thumb; Eli has polish on his forefinger, and Collin has a mark on his middle finger. Logan may have a problem with a nonfunctioning kidney, but the other children are healthy, doctors said. (AP)
羅根、艾利和柯林長大後要是知道他們擦著指甲油出席人生首場記者會，可能會嚇得臉色發白，但這是目前父母能分辨他們的唯一方法。
這組同卵三胞胎誕生於美國紐約長島的北岸大學附屬醫院，這種情況實在太罕見了，產科醫師估計發生機率只有兩億分之一。
接生三胞胎的醫生，也是多胞胎和高風險懷孕專家的維特:克萊說，三胞胎的母親艾莉森:潘恩只植入一個試管受精的胚胎。
他說，胚胎在一分為二後，其中一個又分裂了一次。
克萊說，「這在我國文獻中可是頭一遭，只植入一個胚胎，」卻生下了三胞胎。「大多數人就算植入兩、三個胚胎，也不能確定結果會是如何。」
克萊說，同卵三胞胎誕生的機率，只有兩億分之一到六萬分之一，視研究情況而定。
三十一歲的艾莉森:潘恩表示，她和四十六歲的老公湯姆自四年前結婚後，就一直想生小孩。雖然她一度想多生幾個，但四年來的失望讓她不敢懷抱夢想，所以生下三胞胎令他們很激動。
為了分辨他們，三胞胎男嬰的手指甲上都用褐紫紅色的指甲油做上記號，羅根在大姆指上、艾利在食指，而柯林在中指。醫師說，羅根有顆腎臟可能無法正常運作，其他兩名男嬰則很健康。
（美聯社／翻譯：張愛弟）
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