TY - JOUR AU - Peiris David AU - Haverkamp M AU - Mainor A AU - Westert G AU - Rosenthal M AU - Sequist T AU - Colla C BT - American Journal of Managed Care DA - 107384416237 LA - eng PY - 2018 SP - e216 EP - e221 T2 - American Journal of Managed Care TI - ACOs with risk-bearing experience are likely taking steps to reduce low-value medical services VL - 24 ER -