3. Any serious medical condition within the previous 4 weeks which places the subject at an unacceptable risk if he or she were to participate in the study or confounds the ability to interpret data from the study, including, but not limited to, symptomatic congestive heart failure, unstable angina pectoris, uncontrolled cardiac arrhythmias, acute kidney injury, or psychiatric illness/social situations that would limit compliance with study requirements.