Chunk #13 — MATERIALS AND METHODS — Analytic Strategy

Source: The serotonin transporter polymorphism (5-HTTLPR): allelic variation and links with depressive symptoms.
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Genotype information for 5-HTTLPR is available for 1,019 of the 1,036 medical exam participants. The sample used for model estimation (n=984) excludes another 35 participants who are missing the CES-D or traumatic events.