To obtain comprehensive and accurate data, it is necessary to conduct field surveys of ground substrate, arable land, soil quality, and other natural resource classes. This is in difficult and key ...

A new survey found that one in 10 older men have experienced urinary incontinence — but half of those affected haven’t ...

A household survey using alternative sampling technique might be able to address some of these limitations and complement the assessment of the epidemiological situation. Methodologically, there are ...