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In page Hanna Segal:

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In the main, Segal was content to work within the framework Klein had provided.[citation needed] In terms of the distinction sometimes drawn between "extenders", "modifiers", and "heretics" in psychoanalytic theory, she clearly fell into the first category with respect to Klein.[1] Her long-term explication of the richness of Klein's thought nevertheless meant that Segal's work stands close to the core of post-Kleinian research and development.[2]