LOS ANGELES — Shelley Fabares' cause of death has been revealed.

Fabares was known best for her television roles , including Christine Armstrong on the '90s sitcom "Coach," Francine Webster on the 1970s sitcom "One Day at a Time" and Mary Stone on "The Donna Reed Show," as well as her Billboard Hot 100 song "Johnny Angel" and appearances opposite Elvis Presley in "Spinout," "Clambake" and "Girl Happy."

The actor died Saturday in Los Angeles surrounded by loved ones after battling pneumonia, her family told the Los Angeles Times on Thursday. In the 1990s, Fabares fell ill, but doctors struggled to pin down what the problem was. After years of health problems, she was diagnosed with autoimmune hepatitis. Doctors ultimately discovered severe liver deterioration, and she spent nearly two years on a waiting list for a liver transplant. She received the lifesaving surgery in the fall of 2000.

In 2011, Fabares told PBS Houston that after suffering liver failure and facing death, her outlook on life completely changed. "It really brought home the fragility of life and how fast everything can change and how extraordinarily lucky we are to be alive, and to have this opportunity to be here, and in my case, to get really an entire second chance," she said during the appearance. "It does make things more precious."

She said that, after the close call and lengthy recovery, she feared death less.

"To her family and friends, Shelley was a source of love, strength, laughter, and comfort," Fabares' husband, "MASH" actor Mike Farrell, said in a statement.

"She was a devoted wife, cherished stepmother, daughter, sister, niece, aunt, family member, and loyal friend whose warmth, generosity, humor, and grace made an enduring difference in the lives of everyone who knew her. She had a remarkable ability to make people feel welcomed, valued, and cared for.

"For millions, Shelley was a beloved actress whose work became part of the fabric of American television and film. ... But to those closest to her, her greatest legacy was personal: the love she gave so freely, the friendships she treasured, and the family bonds she held dear.

"We will remember Shelley for her kindness, loyalty, wit, courage, and beautiful spirit. We will miss her deeply — not only as a celebrated performer, but as the loving and extraordinary person she was in our everyday lives.

"We are heartbroken by her loss, yet profoundly grateful for the years we shared with her and for the joy, compassion, and love she brought to so many. We ask that our family's privacy be respected as we grieve. We take comfort in knowing that Shelley's work and the memories she created with those who loved her will continue to live on."

She is survived by her husband and her daughter, Erin.

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