The purpose of this study is to explore the potential for an association between the development of prepubertal gynecomastia and history exposure to lavender essential oil, tea tree essential oil, and other essential oils.
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Lifetime prevalence of prepubertal gynecomastia
Timeframe: Baseline
Lifetime prevalence of precocious puberty
Timeframe: Baseline
Endocrine Disruption - Comparison between exposed and unexposed
Timeframe: Baseline