Sentence examples for are sometimes doubtful from inspiring English sources

Without comprehensive vital events registration systems, estimations on important child health indicators such as mortality often rely on surveys, of which the quality in developing countries are sometimes doubtful [ 9].

The reason for this may be that doctors are sometimes doubtful about CPGs, and they consider them less useful than other sources of medical information, as they are developed for reducing healthcare costs and may not be applicable for individual patients and for local settings [ 16, 17].

Significant efforts are continuously made to analyse and simulate such systems with a high degree of accuracy although the nature of the assumptions often being made is sometimes doubtful.

This is due to the fact that these drugs are only tested in and licensed for adult patients and the transfer of knowledge to the paediatric population is sometimes doubtful.

However, the quality of the evidence is sometimes doubtful (Ackman et al, 2000; Watine, 2002; Burgers and van Everdingen, 2004), and schemes have been devised to grade the quality of the clinical trials, which form a large part of the evidence base (e.g., Psaty et al, 2000; Liberati et al, 2001; Michaels and Booth, 2001; Hess, 2003; Guyatt et al, 2006).

They were the first in the tradition to engage, like Socrates in ancient Greece, in an explicit, reflective search for objective moral standards and to give step-by-step, tightly reasoned arguments for their views, though their reasoning is sometimes simplistic or rests on doubtful assumptions.

I'm sometimes happy, sometimes vulnerable, sometimes full of enthusiasm, sometimes doubtful.

Sometimes, they are doubtful about a course, but later, they realise its benefit from what others share.

Investors are increasingly doubtful.

They are very doubtful.

"I think sometimes that everything is so doubtful that one can only support one position concerning knowledge.