They will track the participants' health and life styles for an average of nine years while testing different hypotheses until the monitoring period ends.

Tests showed that the virus could be detected only once and in very small amounts during a 48-week monitoring period.

Activity: Try to follow your usual routine during the monitoring period.

Do not take a bath or shower during the monitoring period, as the equipment cannot get wet.

Study participants slept, on average, only five hours the night before a trip, the lowest of the entire seven-day monitoring period.

This was done carefully, after a monitoring period of two years to ensure safe water quality.

A total of 660 communities are now surveyed during each annual monitoring period.

Please note: Occasionally your doctor may ask you to continue a certain medication during the monitoring period to see if it is effective.

Many people tend to reduce or change their activities during the monitoring period.

However, such changes can affect reflux occurrence and make the results of the monitoring period less useful.