. . more http://lm360.us/Shaffstall-father-of-Mckiernan-from-Qidong?Teravainen=187 . . . .the youngest claimant was aged 20, and the eldest aged 89, while the average policy duration at claim stage was 10 years. . .it's not clear how well they'll stack up against current migraine therapies, because head-to-head studies haven't been done. . february 2012 (21) .