검색 엔진을 사용하여 관련된 영어 논문을 검색하였다. 일차적 검색어들(vitamin D deficiency, vitamin D insufficiency, hypovitaminosis D, vitamin D status, serum vitamin D level)과 이차 검색어들 (osteoporosis, prevalence, incidence, outcomes, cost, 50 years of age, 60 years of age, post-menopausal women, and the elderly)을 'and'연산으로 검색하였다.
As the participation of women in society increases, Government has tried to guarantee equal opportunity and compensation to them with regulations such as the Labor Standard Act and the Equal Employment Opportunity Law. However, still many female workers work in small places under poor conditions, which don’t follow the regulations. Even though they are luckily working in a good environment, the
Hijab protects women's dignity. It is important to muslim men and women keeping their virginity, and hijab keeps muslim women from scandals. With hijab, they can be protected from sexual harassment or any other harm. Also, thanks to hijab, men are forced to look at a woman as a person not as an object, so they feel safe behind the hijab.
③Liberation from appearance