A) Above 35 years
B) Below 35 years
C) During 1st pregnancy
D) In mothers of at least 3 children
Correct Answer: A
Solution :
They occur in 1/700 births in women aged 25 years or under. The frequency increases with age to about 1/100 for women of age 40 and 1/10 for women of age 45.You need to login to perform this action.
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