Sentence examples for be difficult and usually from inspiring English sources

Above all, reaching a consensus for the rationale for the dealing with dichotomising data from three or four categories appeared to be difficult and usually required discussion with clinical experts.

Determining if there has been a breach of duty in a medical malpractice claim can be difficult and usually requires that at least one expert declare that the healthcare provider failed to live up to the expected standard of care.

It is difficult and usually impossible to optimize all these performance indices at the same time.

Applicon's early sales were difficult and usually involved benchmark after benchmark before any decision was reached.

Diagnosis is difficult and usually occurs following clinical presentation of hemorrhagic or ischemic stroke, seizures, migraines or developmental issues.

Reconstructing the premaxillary is well-known for being difficult and usually requires a bone implant, in grafts or flaps.

θ′ is an effective strengthening precipitate phase in high-strength Al alloys; unfortunately its nucleation is difficult and usually requires assistance, such as that provided by Sn in Sn-microalloyed Al Cu.

Therefore, their identification by computer algorithms is difficult and usually produces numerous false positives.

However, the identification of distinct oxidases in whole cells is difficult and usually restricted to cells expressing only one type of oxidase.

Generation of samples containing only SAF is difficult, and usually contain a small percentage of LAF.

During septic shock resuscitation, perfusion assessment is difficult and usually a complex determination.