It is difficult to determine an exact number because of a lag time in official counts and differences in the states' standards.
In addition, it is difficult to determine with certainty that early whether a baby is HIV-positive, and overtreatment would risk wasting scarce medications that offer a better chance of helping other patients.
While experts said it is difficult to determine how many people belong to hate groups, they do agree with an SPLC estimate that claims there are about 900 operating now, a 40 percent increase from 2000.
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But it is not difficult to determine which company most angered its creditors.
This may be very significant if it is difficult, if not impossible, to determine status based on other facts.
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It is often difficult to ascertain the source of the bug, and if the source is found, it is not easy to determine who bears the responsibility, according to Miller.
However, their young age makes it difficult to determine whether this is definitely the case.
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For example, if your husband owns his own business, and especially if a high percentage of the business income is in cash, it can be extremely difficult to determine his true income.
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It is rare that a match scenario proves so difficult to determine, but England can perhaps claim to have had the better of things given the spectacular start made by Tamim, and a host of promising partnerships that failed to develop significantly.
It's often difficult to determine that an illness is a direct result of pesticide poisoning, yet many studies link a wide variety of health problems to such exposure.
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It is difficult to get laboratory confirmation of a suspected norovirus outbreak, so the "Kaplan Criteria" often are applied to determine the likelihood that the outbreak is of viral origin.
In particular, it may be difficult to determine whether principal risk has been retained because (i) the retention of such risk is necessary to provide intermediation and liquidity services for a relevant financial instrument or (ii) the position is part of a speculative trading strategy designed to realize profits from price movements in retained principal risk.
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