1.   At first, other doctors doubted that clogged arteries and chest pain could be reversed by something as low-tech as diet and behavior modification.

2.   At least two other area children were victims of the same syndrome in recent months, but doctors doubt the cases were connected.

3.   Doctors doubt she could pass a naturalization exam.

4.   Doctors doubted he would live, and worried about his life prospects if he did.

5.   Doctors doubted whether the child would live.

6.   Her initial reaction was so overwhelmingly positive that her doctor doubted it could be real.

7.   At first, many doctors doubted he would ever develop useful function or sensation in the new extremity.

8.   But the doctor doubts the bacteria will come back, and even if it does, his immune system should now be able to handle it.

9.   Doctors doubt more than one will survive.

10.   Doctors doubt that Papandreou will ever recover enough to resume his duties.