Sentence examples similar to considerably doubtful from inspiring English sources
For our study, we adopted a conservative approach and derived immunization information from immunization cards rather than from the mother's declaration, because the validity of the latter approach is considerably more doubtful and susceptible to potentially significant recall biases (Suarez et al. 1997; Murray et al. 2003; Bishai 2008; Burton et al. 2009).
"Confidence in the Q400 has diminished considerably, and our customers are becoming increasingly doubtful about flying in this type of aircraft," the S.A.S. chief executive Mats Jansson said in a statement.
We regard heterozygous genotypes as being of doubtful accuracy if the mean confidence for rare hets is considerably higher than the mean BRLMM confidence for all genotypes called in the same subject (under "All 500K", column 6).
Charlie Johnston, son and assistant trainer to his father Mark, said: "The plan was very much to run Buratino in the Commonwealth Cup, but it would have to look doubtful at this moment in time unless the ground dries out considerably.
It is also considerably more than the cash infusions Mr Gore proposes for the system.Whether the Bush plan really will increase national saving, however, is doubtful.
The President seemed doubtful.
But Heffernan was doubtful.
