the introduction of this qualitative serum assay for human chorionic gonadotropin into our outpatient department during a 1-month period was associated with a significant decrease in culdocenteses ( p less than 0.001 ) , ultrasound examinations ( p less than 0.025 ) , and hospital admissions ( p less than 0.01 ) , with a net projected institutional reduction in health care costs of +123,000 annually .
C0205556
qualitative
C0018684
health