TY - JOUR T1 - Selective contracting in managed care: The case of substance abuse treatment AU - Lemak, Christy H. AU - Alexander, Jeffrey A. PY - 2001 DO - 10.1177/107755870105800405 SP - 455 - JO - Medical Care Research and Review VL - 58 IS - 4 SN - 1077-5587 ER -