While at medical school, Spielrein continued to assist Jung in the laboratory as she had done as an in-patient. She also attended his ward rounds and met him socially. The strong feelings she had developed towards him as his hospital patient continued during her first three years at medical school, and she developed a fantasy of having a child between them to be called Siegfried. She did not have any further therapy from him, although from around late 1907 he informally tried to analyze her wish for his child. In the summer of 1908, as she entered her fourth year at medical school, she and Jung began to have increasingly intimate encounters, which she described in her diaries as "poetry". There are differing views as to whether or not they had sexual intercourse. John Launer has reviewed the evidence from her diaries and their letters in his 2015 biography of Spielrein, "Sex Versus Survival. The Life and Ideas of Sabina Spielrein". He has concluded that they had consensual and erotic physical contact but stopped short of sexual penetration. This is supported by Spielrein's statement in a letter to her mother: "So far we have stayed at the level of poetry that is not dangerous." Lance Owens has further summarized the documentary evidence in his 2015 study, "Jung in Love: The Mysterium in Liber Novus", Zvi Lothane, a Freudian psychoanalyst and scholar of psychoanalytic history, makes the most robust and well-supported case against a consummated sexual relationship between the pair. Lothane summarizes his conclusions: