Articles by Robert A. Schaefer (1)

Markers for hepatitis A, B and C in methadone maintained patients: an unexpectedly high co-infection with silent hepatitis B

Gavin Bart, Paola Piccolo, Linqi Zhang, Ira Jacobson, Robert A. Schaefer and Mary Jeanne Kreek

Addiction 103 ( 4 ): 681 - 686 , 2008

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