Breast swollen copp.

Breast cancer is a malignant tumour that occurs in the mammography. The causes are mainly hormonal effects, such as an abnormal level of estrogen and pregnancy hormone. Genetic factors also…

Great discovery – penicillin.

penicillin was one of the first antibiotics discovered by the British bacterial scientist Alexander Fleming. In 1928, Flemming discovered in an experiment that acne had the potential to produce a…