Phylogenetic analysesshowthat these proteins belong to different keratin lineages that originated in an early tetrapod ancestor and in mammals evolved to become the major keratin types of hair.
Experts on the right periodically trot out analysesthatshowthat workers would be better off if they could invest their payroll taxes in private retirement accounts.
Meta-analyses of randomised studies and large observational registries showthat radial access reduces procedure access site-related major bleeding compared to femoral access.