Contraceptive pills. Packets of the oral contraceptive Loestrin. These pills contain norethisterone acetate,also known as norethindrone acetate,which is a form of progestin,a synthetic progesterone hormone | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / JON STOKES |
Bildgröße: | 3543 px × 5315 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |