Impaired cardiac function Impaired cardiac function. Impaired cardiac function Impaired cardiac function or history of cardiac problems Impaired cardiac function or history of cardiac problems Impaired cardiac function Impaired cardiac function (defined futher in the protocol) Known impaired cardiac function including any one of the following: Impaired cardiac function Impaired cardiac function Impaired cardiac function impaired cardiac function Impaired cardiac function including any of the following: Impaired cardiac function Impaired cardiac function including any one of the following: