BACKGROUND Gastroesophageal reflux disease(GERD) occurs when the reflux of stomach contents causes troublesome symptoms and/or complications. When medical thera
BACKGROUND The development of biodegradable surgical staples is desirable as non-biodegradable Ti alloy staples reside in the human body long after wound healin
BACKGROUND Osteoarthritis is a major source of pain,disability,and socioeconomic cost worldwide.Osteonecrosis is a disabling disorder that frequently occurs in