³í¹®) Prediction of risk of osteoporosis after gastrectomy for gastric cancer °¡Å縯´ë ¼¿ï¼º¸ðº´¿ø ¾Ïº´¿ø À§¾Ï¼¾ÅÍ(À§Àå°ü¿Ü°ú) ¼Û±³¿µ(»çÁø ñ§, ·Îº¿¼ö¼ú¼¾ÅÍÀå, ±³½ÅÀúÀÚ), ¼ººó¼¾Æ®º´¿ø À§Àå°ü¿Ü°ú ¹Ú±â¹ü(éÓ, Á¦1ÀúÀÚ) ±³¼ö ¿¬±¸ÆÀ