The phrase "entail difficulties" is correct and commonly used in written English.
It means that something will cause problems or challenges. Example: Implementing this new policy will entail difficulties, such as retraining staff and adjusting to new procedures.
Nevertheless, existing methods for introducing defects in graphene entail difficulties in controlling the quantity of the defects and/or avoiding contamination from external substances [29].
The first step in the adaptation study showed that there are indeed similarities between Germany and Switzerland but that an adaptation may also entail difficulties as a result of different commercial work conditions (e.g., job definitions, commercial activities and different branches) and cultural characteristics (e.g., language, interpersonal behavior, and company structures).
Managing daily life could entail difficulties in peeling potatoes or handling cutlery in the kitchen.
5 9 Most medical records are still paper medical records (PMRs) and entail difficulties in terms of data extraction that remains manual.
With the relatively primitive apparatus available and limited power, the processing of the whole root would entail difficulties in rasping and in removing dirt, crude fibre and cork particles, whereas comparatively little extra starch would be gained.
This last claim entailed difficulties of its own, such as how atoms ever overtake each other, if they are moving in the same direction.
This disorder is often associated with marked clumsiness, which entails difficulties walking, crawling and running [ 51].
For children, this entails difficulties at school and in social interactions [ 18, 21, 52, 53].
The other exposure, distance to major road, represents exposure to traffic but may also express socioeconomic status (Nicolai et al. 2003; Vineis et al. 2007), which entails difficulties in separating these effects (Nicolai et al. 2003).
This entails difficulty sleeping during the day, and difficulty staying alert while working at night.
