frailty in czech frailty in german frailty in danish frailty in spanish frailty in french frailty in italian frailty in norwegian frailty in russian frailty in swedish frailty in albanian frailty in belarusian frailty in estonian frailty in finnish frailty in greek frailty in hungarian frailty in portuguese frailty in slovak frailty in ukrainian frailty in polish