The issue description starts off with researches performed by Vincenzo Chiarugi and Jean-Étienne Dominique Esquirol.
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Gannushkin's granddaughter, Svetlana Gannushkina (born 1943), is a mathematician and human rights activist who was reported to have been a serious contender for the 2010 Nobel Peace Prize.
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Theodore Millon (born 1928), also a researcher of psychopathies, now known as personality disorders.
Pyotr Bagration | Pyotr Kapitsa | Pyotr Vyazemsky | Pyotr Stepanov | Pyotr Nikolsky | Pyotr Nikolayevich Wrangel | Pyotr Nesterov | Pyotr Leshchenko | Pyotr Krasnov | Pyotr Kozlov | Pyotr Kolodin | Pyotr Suvchinsky | Pyotr Rumyantsev | ''Pyotr Potemkin'' by Godfrey Kneller | Pyotr Mikhaylovich Yershov | Pyotr Leshchenko (TV Series) | Pyotr Dolgorukov | Pyotr Demichev | Pyotr Blinov | Pyotr Aleksandrovich Tolstoy |