Meanings of conducted in areas in английском

The studies were conducted in areas heterogeneous in terms of industrial activities.

Most studies of asymptomatic infection have been conducted in areas of endemic visceral leishmaniasis.

However, only a few studies have been conducted in areas with moderate PM2.5 concentrations.

Methods: Two cross-sectional surveys were conducted in areas of active transmission in the Surat Thani province of Thailand in January and May 2019.