Plasma-free homovanillic acid: Within- and across-day stability in children and adults with tourette's syndrome
Riddle M, Leckman J, Anderson G, Ort S, Hardin M, Stevenson J, Cohen D. Plasma-free homovanillic acid: Within- and across-day stability in children and adults with tourette's syndrome. Life Sciences 1987, 40: 2145-2151. PMID: 3473273, DOI: 10.1016/0024-3205(87)90004-x.Peer-Reviewed Original Research