Anastasia Siokis

The 54-year-old human rights activist is currently serving an 18-year prison sentence in Iran.

She was transferred to the critical care unit from a prison in the provincial city of Zanjan.

According to her foundation statement, authorities have refused to let her be transferred to Specialist Care in Tehran despite her ongoing poor health.

She's an advocate for women's rights and against the Iranian government's use of torture and sexual violence.

She's also been working to abolish the death penalty in her country.

Anastasia Tsilkas, NPR News, New York.

According to the Guinness Book of World Records, Asha Bowley was the most recorded singer of all time.

Over a career that lasted nearly eight decades, she recorded more than 12,000 songs, mostly for movie actresses to lip-sync on screen.

And for much of her career, her main competition was her older sister, Lata Mangeshkar.

Their father was a classical Indian singer, but he died young.

So the sisters made their way to Mumbai and started singing for films to help support their family.

Boza made her first recording when she was just 10 years old.

Anastasia Tsilkas, NPR News, New York.