Sentence examples for are still frequent problems from inspiring English sources

However, in spite of all the effort dedicated to SSR genotyping and standardization of allele sizes and genotypes [ 53], there are still frequent problems of allele identification among laboratories using different DNA fragment separation technologies.

But there are still frequent cross-border incidents.

On Kirkuk's streets, insurgent attacks are still frequent.

E. granulosus s. s. (the former 'sheep strain') is still frequent and a public health problem in many parts of the Mediterranean region and re-emergence after failed control campaigns is observed or suspected in Bulgaria and Wales.

This is an important problem for the routine use of MALDI-TOF MS for the direct diagnosis of blood cultures in countries where brucellosis is still frequent.

Risky behaviors were still frequent in December 2007 (Table 3).

There are still deeper problems.

Yet there are still some problems.

Unemployment and poverty are still intractable problems.

But there are still other problems.

Undoubtedly, there are still many problems.