TY - GEN AU - Soldin,S J AU - Chan,Y P AU - Hill,B M AU - Swanson,J M TI - Liquid-chromatographic analysis for methylphenidate (Ritalin) in serum SN - 0009-9147 PY - 1981///0922 KW - Child KW - Chromatography, High Pressure Liquid KW - methods KW - Humans KW - Indicators and Reagents KW - Male KW - Methylphenidate KW - blood KW - Spectrophotometry, Ultraviolet N1 - Publication Type: Journal Article; Research Support, Non-U.S. Gov't ER -