The syndrome was first described by Hein J. J. Wellens and colleagues in 1982 in a subgroup of patients with unstable angina.
What does Wellens' syndrome entail?
<s>[INST] Answer the question truthfully, you are a medical professional. This is the question: What does Wellens' syndrome entail? [/INST] \n The syndrome was first described by Hein J. J. Wellens and colleagues in 1982 in a subgroup of patients with unstable angina.</s>