(n) metabolic syndrome
(n) superior mesenteric artery syndrome
(n) sleep apnea syndrome
SAS
(n) polycystic-ovary syndrome
(n) hemolytic-uremic syndrome
HUS
(n) Stockholm syndrome
(n) slow virus infection
(n) Budd-Chiari syndrome
(n) mitochondrial encephalomyopathy
(n) occurrence of deep vein thrombosis in air travelers
(n) primary immunodeficiency syndrome
(n) acquired immune deficiency syndrome
AIDS
(n) hypercholesterolemia
hypercholesterolaemia (excess of cholesterol in the bloodstream)
(n) severe acute respiratory syndrome
SARS
(n) primary immunodeficiency syndrome
(n) attention deficit-hyperactivity disorder
ADHD
(n) partial anomalous pulmonary venous connection
PAPVC
partial anomalous pulmonary venous drainage
PAPVD
partial anomalous pulmonary venous return
PAPVR
(n) Eisenmenger syndrome
(n) atherosclerosis
(n) insulin-resistance syndrome
(n) economy class syndrome (occurrence of deep vein thrombosis in air travelers)
(n) nonsteroidal anti-inflammatory drug
NSAID
(n) Adams-Stokes syndrome
(n) Klinefelter's syndrome
(n) Lesch-Nyhan syndrome
(n) fibrodysplasia ossificans progressiva (disease of the connective tissue)
FOP
(n) Stevens-Johnson syndrome