1.665 Golygfeydd
Dr. David Suzuki explains how antibiotics have been over prescribed for decades and it has led to the fact that now there are bacterial infections that are resistant to them, and people are dying by the thousands.
Rhyddhau: Mar 05, 2015
Amser Cinio: 43 munudau
Iaith: English
Gwlad: Canada
Cast: David Suzuki