A CHRONOLOGY

1986

July Paul Lozano, a student at the Harvard Medical School, is depressed and decides to seek therapy. He consults a list provided by the school and contacts the first name, Assistant Clinical Professor of Psychiatry Margaret H. Bean-Bayog '65. His first appointment is July 3.

Lozano drifts in and out of local hospitals between 1986 and 1990.

November Bean-Bayog's notes indicate the start of regression therapy.

1987

December Bean-Bayog writes daily letters to Lozano during his Christmas vacation.

According to The Boston Herald, all 18 letters are signed "Love Dr. B."

Cambridge social worker Amy Stromsten meets Lozano and establishes a friendship with him, according to her affidavit.

1990

Summer Bean-Bayog heads a professional consultation group including Stromsten and five other social workers. Bean-Bayog describes her "erotic sexual feelings" for Lozano, according to Stromsten.

Lozano is an intern at a hospital in El Paso.

June Bean-Bayog ends her treatment of Lozano.

October Lozano begins therapy with Dr. William B. Gault, a Newton psychiatrist.

Lozano's sister discovers documents from Bean-Bayog in Lozano's apartment and seeks an attorney.

December Gault complains about Bean-Bayog's treatment of Lozano to the state Board of Registration in Medicine.

1991

January Lozano tells Stromsten that he has been having sex with Bean-Bayog for "a number of years." He describes the relationship as kinky and says he feels "ashamed, embarrassed, dirty," according to Stromsten.

Stromsten tells Lozano he is being sexually abused and refers him to Dr. Michael Lew, of Newton Lower Falls.

February 4 Gault sends a second letter to the medical board regarding Bean-Bayog's treatment.

-- 11 The board calls Gault and requests another copy of the letter. He transmits one by fax that same day.

-- 21 The board opens a file on the case.

--26 The board assigns an investigator to the case. The investigator contacts Gault and attempts to confirm the allegations and obtain the patient's identity.

March 8 Lozano family attorney Thomas O'Hare provides the board with what he says are Bean-Bayog's notes about Lozano. A chronology provided by the board indicates that "essential" documents are unavailable.

April 2 Lozano dies after injecting himself with cocaine. It is unclear whether his death is accidental or a suicide.

-- 3 O'Hare contacts the medical board about Lozano's death.

-- 23 O'Hare contacts the Harvard Medical School with complaints about Bean-Bayog.

May 1 The Medical School puts Bean-Bayog on administrative leave and removes her name from referral lists. A special committee convened and made the decision during the past week.

-- Stromsten contacts Assistant Clinical Professor of Psychiatry Bernard S. Levy about the Lozano case. She says Levy attempted to "cover-up" the case.

September The Lozano family files a wrongful death and malpractice suit against Bean-Bayog in Middlesex Superior Court.

October Boston attorney Andrew Meyer takes over the case from O'Hare.

November Meyer reports contacting the medical board to ask why no action has been taken.

1992

March 26 Meyer files hundreds of pages of documents in court and the case becomes public.

--27 Bean-Bayog issues a statement denying the allegations.

--30 State Consumer Affairs Secretary Gloria Larson, who oversees the medical board, calls an emergency meeting. The state board meets for more than five hours and rules that Bean-Bayog engaged in "substandard care." It choses not to revoke her license and refers the case to an appeals judge for a formal hearing.

-- 31 Bean-Bayog files a response to the board's allegations, her first public defense of how she handled the Lozano case. She again denies charges of sexual misconduct and inappropriate therapy. She describes Lozano as a liar and thief who "harbored homicidal, violent and delusional thoughts" and characterizes his death as accidental.

April 1 Stromsten files an affidavit in Middlesex County Superior Court supporting the charges made by the Lozano family. She describes Lozano as a clean-cut medical student and a "bright, thoughtful kid."

Bean-Bayog responds to the affidavit, charging that her "reputation is being raped by the calculated actions of people who have a financial interest in distorting the truth to their advantage. No male therapist has ever been the subject of such an assault."