J. Mrozek

Sildenafil citrate decreased natural killer cell activity and enhanced chance of successful pregnancy in women with a history of recurrent miscarriage.

A. Górski, W. Baranowski, M. Jerzak, 2008, Fertility and sterility.

[Diagnostic values of lactate dehydrogenase (LDH), creatine kinase (CK) and gamma-glutamyltransferase (gamma-GT) examinations in the course of intrahepatic cholestasis in pregnancy].

K. Czajkowski, R. Smolarczyk, J. Teliga-Czajkowska, 2001, Ginekologia polska.

BMI-referenced cut points for pedometer-determined steps per day in adults.

B E Ainsworth, D R Bassett, B. Ainsworth, 2008, Journal of physical activity & health.