salt-poor albumin
Sheep pulmonary adenomatosis
single photon absorptiometry
sperm penetration assay
spondyloarthropathy
spontaneous platelet aggregation
Standardized Performance Analysis
staphylococcal protein A
subperiosteal abscess
scalable processor architecture
Scintillation Proximity Assay
Scottish Prescribing Analysis
serotype polysaccharide antigen
serum plate agglutination
shrinking pleuritis with atelectasis
small pulmonary arteries
small pulmonary artery
Social Phobics Anonymous
Social physique anxiety
Society of Pediatric Anesthesia
soluble parasite antigens
soluble protective antigen
soluble protein A
sparkling
spastic
spastic ataxia
Special Protocol Assessment
sperm-hamster egg penetration assay
sphenopalatine artery
spinal anaesthesia
spinal anesthesia
spinal progressive amyotrophy
spondylarthritis
spondylarthropathies
spondylarthropathy
spondyloarthritides
spondyloarthritis
spondyloarthropathies
spontaneous aggregation
spontaneous physical activity