New extraction procedure and high-performance liquid chromatographic method for analyzing polyethylene glycol-400 in urine
1992 ◽
Vol 578
(2)
◽
pp. 297-301
◽
1991 ◽
Vol 572
(1-2)
◽
pp. 339-345
◽
1994 ◽
Vol 657
(1)
◽
pp. 83-92
◽
2001 ◽
Vol 750
(1)
◽
pp. 137-146
◽
2015 ◽
Vol 05
(51)
◽
pp. 13-20
◽
1999 ◽
2017 ◽
Vol 8
(1)
◽