This is a preview. Log in through your library . Abstract Criteria for selecting sites are described and the various sampling, rearing, and identification techniques used to investigate field S.

Sampling is a type of scientific surveying which can save time and money and give information on the population of animals and plants. There are many different types of sampling; the most useful type ...

This review paper examines and evaluates urine-sampling methodologies in infants and young children, to determine which methods are suitable for use in large biomonitoring surveys or studies of ...