EXHIBIT 3.106

                            CERTIFICATE OF FORMATION

                                       OF

                      BHC MANAGEMENT SERVICES OF TULSA, LLC

      The undersigned, an authorized person, for the purpose of forming a
limited liability company under the provisions and subject to the requirements
of the Delaware Limited Liability Company Act, hereby certifies that:

      FIRST: The name of the limited liability company ("limited liability
company") is BHC MANAGEMENT SERVICES OF TULSA, LLC.

      SECOND: The address of the registered office and the name and the address
of the registered agent of the limited liability company are Corporation Service
Company, 2711 Centerville Road, Suite 400, Wilmington, New Castle County,
Delaware.

      Executed on June 4,2004.

                                                 /s/ Stephen C. Petrovich
                                                 -------------------------------
                                                 Stephen C. Petrovich
                                                 Authorized Person

                                                        State of Delaware
                                                        Secretary of State
                                                     Division of Corporations
                                                  Delivered 05:34 PM 06/04/2004
                                                    FILED 05:26 PM 06/04/2004
                                                   SRV 040418349 - 3812319 FILE