Medically reviewed by Stella Bard, MD CREST syndrome, or limited systemic sclerosis, is a rare autoimmune disease that causes ...

Pediatric Research - Relationship between systemic blood flow, blood pressure, inotropes, ... P3, C4, and P4 regions (International 10–20 system).

Blood circulation, as is now understood, is a double system. There is a circuit through the body (the systemic circulation) as well as one through the lungs (the pulmonary circulation).