Nonrandomized, controlled clinical trial with cause-specific mortality as an endpoint. See Levels of Evidence for Human Studies of Integrative, Alternative, and Complementary Therapies (PDQ®) for more information.
Nonrandomized, controlled clinical trial with cause-specific mortality as an endpoint. See Levels of Evidence for Human Studies of Integrative, Alternative, and Complementary Therapies (PDQ®) for more information.