TY - JOUR T1 - Medical and psychosocial services in drug abuse treatment: Do stronger linkages promote client utilization? AU - Friedmann, Peter D. AU - D'Aunno, Thomas A. AU - Jin, Lei AU - Alexander, Jeffrey A. PY - 2000 SP - 443 - JO - Health Services Research VL - 35 IS - 2 SN - 0017-9124 ER -