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Possibilities and limitations of the polar RS800 in measuring heart rate variability at rest
by Wallén, Martin Benka
European journal of applied physiology, 2011-07-16, Vol.112 (3), p.1153-1165

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Polycystic ovary syndrome increases the risk of endometrial cancer in women aged less than 50 years: an Australian case–control study
by Fearnley, Emily J
Cancer causes & control, 2010-12-01, Vol.21 (12), p.2303-2308
