Complex sentence: In repeated visits to ALSPAC's central Bristol clinic from age 7 onwards, the young participants have been measured in a variety of ways, including bone mass measurement, blood pressure, allergy testing, lung function and tests of their vision, hearing and other senses.
Split into simpler sentences: In repeated visits to ALSPAC's central Bristol clinic, the children have been measured in a variety of ways. These clinical assessments have included bone mass measurement, blood pressure, allergy testing, lung function and tests of their vision, hearing and other senses.