유영숙 정봉철 박종세 Jang, H. K. Eom, K. D. 2024-01-22T00:03:48Z 2024-01-22T00:03:48Z 2022-01-10 1991-01 https://pubs.kist.re.kr/handle/201004/146894 Quantitative analysis of endogeneous steroids in human urine by using gas chrommalography mass spectrometry. Article 3 Journal of Korean society of endocrinology, v.v. 6, no.no. 3, pp.238 - 244 Journal of Korean society of endocrinology v. 6 no. 3 238 244