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Risk Factors
Retrospective Studies
Treatment Outcome
Biological Markers
Risk Assessment
Proportional Hazards Models
Prospective Studies
First Pregnancy Trimester
Case Control Studies
Catheterization, Central Venous
Renal Dialysis
Angioplasty, Balloon
Radiography, Interventional
Arteriovenous Shunt, Surgical
Thrombectomy
Pennsylvania
Pregnancy, Ectopic
Pregnancy
Vascular Patency
Indwelling Catheters
Co-Publications
18
12
11
10
9
8
6
5
4
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