O A Kharkova

Effect of Smoking Behavior before and during Pregnancy on Selected Birth Outcomes among Singleton Full-Term Pregnancy: A Murmansk County Birth Registry Study

O A Kharkova, A M Grjibovski, Alexandra Krettek et al. · International Journal of Environmental Research and Public Health · 2017 · 36 citations · Full text

Reproductive Health, Reproductive Epidemiology, High-risk Pregnancy +19

CROSS-SECTIONAL STUDIES: PLANNING, SAMPLE SIZE, DATA ANALYSIS

Kamila Kholmatova, Maria A. Gorbatova, O A Kharkova et al. · Ekologiya Cheloveka (Human Ecology) · 2016 · 29 citations · Full text

Epidemiology, Preventive Medicine, Engineering +14

Prevalence of smoking before and during pregnancy and changes in this habit during pregnancy in Northwest Russia: a Murmansk county birth registry study

O A Kharkova, Alexandra Krettek, A M Grjibovski et al. · Reproductive Health · 2016 · 26 citations · Full text

TYPES OF RESEARCH IN HEALTH SCIENCES

Kamila Kholmatova, O A Kharkova, A M Grjibovski · Ekologiya Cheloveka (Human Ecology) · 2016 · 25 citations · Full text

Evidence-based Therapy, Patient Safety, Sample Size Calculation +11

COHORT STUDIES IN MEDICINE AND PUBLIC HEALTH

Kamila Kholmatova, O A Kharkova, A M Grjibovski · Ekologiya Cheloveka (Human Ecology) · 2016 · 19 citations · Full text

Retrospective Cohort Study, Preventive Medicine, Global Health +12