Review

Rare cases of the twin pregnancies

• Filip Doktorowicz, Aneta Poręba, Ryszard Poręba

Review

The significance of kynurenic acid in procreation

• Paweł Milart

Review

Arginine ? new directions and possibilities of the use in gynecology and obstetrics

• Violetta Skrzypulec-Plinta, Agnieszka Drosdzol, Wioleta Rozmus-Warcholińska, Mateusz Michalski

Position Paper

Human papillomavirus vaccines WHO position paper

• WHO’s Strategic Advisory Group of Experts