The unintended pregnancy rate is rising despite increased availability and use of different types of emergency contraception (EC) pills. Few studies have addressed reasons for EC failure, yet such an investigation may allow researchers to better understand if EC can be used more successfully.Recently studies have shown that EC failure rates are…
There are two study questions we are asking in this randomized phase II/III trial based on a blood biomarker, Epstein Barr virus (EBV) deoxyribonucleic acid (DNA) for locoregionally advanced non-metastatic nasopharyngeal cancer. All patients will first undergo standard concurrent chemotherapy and radiation therapy. When this…