Every clinic visit was followed by a call haggling about what percentage they would cover.

The particle repositioning maneuver can be performed during a clinic visit by health professionals or taught to patients to practice at home.

Electronic diaries ensure entries are made as scheduled, and not, for example, in a batch immediately before the clinic visit.

Beginning in 1989, the participants, whose average age was 72, had extensive annual medical examinations, as well as clinic visits every six months.

Tests of learning and memory over five clinic visits showed a decline in those with the mutation compared with an improvement in those without.