Sentence examples for behaviour is more problematic from inspiring English sources

However, confounding by smoking behaviour is more problematic when comparing lung cancer between HIV-positive and HIV-negative subjects (Engels et al, 2006; Chaturvedi et al, 2007; Shiels et al, 2010; Engsig et al, 2011).

"This is more problematic".

That is more problematic.

Private equity is more problematic.

What is left unseen is more problematic.

The Romney arithmetic is more problematic.

The 39.5 Percent This is more problematic.

Within the city, movement is more problematic.

However, the term "greens" is more problematic.

Marie's situation, however, is more problematic.

But the song element is more problematic.