R York is an author at University of Pennsylvania specializing in psychology, maternal health, and depression.
Top concepts
MedicineDepressionGynecologyPsychiatryPsychologyPrematurityPreeclampsiaContraceptionMental HealthPreterm Labor
Publications per year
1989–1989
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Characteristics of premenstrual syndrome.
R York, Ellen W. Freeman, Brandon D. Lowery et al. · PubMed · 1989 · 26 citations
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