How the quality of GWAS of human lifespan and health span can be improved - Yashin, Anatoliy I.; Arbeev, Konstantin G.; Wu, Deqing; Arbeeva, Liubov S.; Kulminski, Alexander M.; Akushevich, Igor; Culminskaya, Irina; Stallard, Eric; Ukraintseva, Svetlana (Frontiers in Genetics, 2013)