I encourage you to take advantage of Linda J Gottlieb's website: http://www.endparentalalienation.com/. It has all her articles which document support for shared parenting, how to document the existence of the PAS, why PAS is child abuse, 29 pages from her book, and much more. All can be downloaded for free.
Just a Few Case Examples Documenting How the PAS is Unquestionably Child Abuse via Linda J. Gottlieb, LMFT, LCSW-R, Author
Case 1) I was contacted for the second time by a father in the middle of a high conflict divorce. He and his wife had been in treatment with me a year prior, presumably to mitigate the marital stress affecting their three children ages 12, 15 and 17. It quickly became apparent that the mother was engaging in alienating behaviors. She showed the children "the papers" in which she had claimed preposterous, malicious allegations against the father such as having had an affair when she was actually having an affair and squandering the marital assets when the family home was the only asset, thusly accusing the father of robbing their children's college funds. And suddenly, without any prior allegations during a 20 year marriage, the father was being accused in "the papers" of having been "too seductive" with the girls when they were younger and having been physically abusive to his wife. When the couple had originally contacted me for therapy , they were primarily concerned about their 17-year-old daughter, who was enmeshed with her mother and was being used by her mother as her confident to complain about the father and as her therapist to assuage the mother's over-wrought emotions. I resigned as the therapist when the mother refused to relinquish her alienating behaviors. During the father's most recent contact with me, he informed that the girl subsequently failed her first year of college. But the recent phone call was in reference to their 15-year-old daughter, who had been hospitalized for a suicide attempt and was unresponsive to every anti-depressant and anti-psychotic regime she had undergone, (not a surprise to me on either account.) Exhausting all less intrusive options, the psychiatrist recommended electroconvulsive therapy (ECT), and the father was inquiring my opinion about that recommendation. My chagrin about these developments cannot be put into words. What do I think about ECT? Do you give insulin to someone who does not have diabetes? Do you prescribe lithium for an earache? Do you f----up a child, making the child a guinea pig with experimental and risky procedures when it is a parent who is the incorrigible and relentless source of the child's emotional distress? And just for good measure, the 12-year-old became morbidly obese. Was doing so the girl's way of warding off relationships, which she experienced as being perilous because her mother was modeling that men abuse and take advantage of women? Tell me the children's symptoms are not being created and maintained by a dysfunctional family dynamic known as the PAS.