Abstract
Twin studies (Luxenburger, 1928; Rosanoff et al., 1934; Essen-Möller, 1941; Kallmann, 1946; Slater, 1953; Inoye, 1961; Tienari, 1963; Kringlen, 1968; Gottesman & Shields, 1972; Fischer 1973; Pollin et al., 1969) and fostering and adoption studies (Karlsson, 1966; Heston, 1966; Rosenthal et al., 1968; Kety et al., 1968), show that genetic factors play a major role in the etiology, but other, environmental, factors are important as well. That statement is generally accepted so I will summarize some of the questions which come into my mind regarding schizophrenia and genetics:
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Is the syndrome we call schizophrenia a disease which can be identified in countries with different social and cultural background?
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Fischer, M. (1977). Twin Studies and Diagnostic Issues in Schizophrenia. In: Gershon, E.S., Belmaker, R.H., Kety, S.S., Rosenbaum, M. (eds) The Impact of Biology on Modern Psychiatry. Springer, Boston, MA. https://doi.org/10.1007/978-1-4684-0778-5_19
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DOI: https://doi.org/10.1007/978-1-4684-0778-5_19
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