Huang shows her CT scan film in her room at the accommodation where patients and their family members stay while seeking medical treatments in Beijing, China, June 22, 2016. Huang, who suffers from rectal cancer, came from Inner Mongolia to seek treatment in a hospital in Beijing. REUTERS/Kim Kyung-Hoon SEARCH "HOSPITAL ACCOMMODATION" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

A guest interacts with a CT scan graphic during a media preview for the exhibit "Mummies: New Secrets from the Tombs" at the Natural History Museum of Los Angeles County in Los Angeles, California September 10, 2015. The exhibit opens to the public on September 18. REUTERS/Mario Anzuoni 

A CT scan machine is seen on display during a media preview for the exhibit "Mummies: New Secrets from the Tombs" at the Natural History Museum of Los Angeles County in Los Angeles, California September 10, 2015. The exhibit opens to the public on September 18. REUTERS/Mario Anzuoni 

Owner Dora Kettinger talks to her dogs after an examination in a neurology clinic in Budapest February 9, 2014. Hungarian researchers conducted the first comparative dog and human brain study with developing dog training methods to make them lay motionless in MRI machines. The study was done to understand how dogs can be so remarkably good at tuning into the feelings of their owners. Picture taken February 9, 2014. REUTERS/Bernadett Szabo (HUNGARY - Tags: ANIMALS SCIENCE TECHNOLOGY TPX IMAGES OF THE DAY) FOR BEST QUALITY IMAGE SEE GM1EA3C1G4W01 

A female survivor of the quake in the town of Awaran, at the southwestern Pakistani province of Baluchistan, receives medical treatment in the Civil hospital Karachi September 25, 2013. The death toll from a powerful earthquake in southwest Pakistan rose to 327 on Wednesday after hundreds of mud houses collapsed on residents throughout the remote and thinly populated area, local officials said. REUTERS/Athar Hussain (PAKISTAN - Tags: ENVIRONMENT DISASTER HEALTH) 

Fafa, a lioness that is nearly 18-year-old, undergoes a CT scan at the veterinary clinic in Brasilia August 7, 2012. Fafa has been living in Brasilia Zoo since its birth and had undergone surgery this year to remove both its ovaries and uterus. Fafa was sedated and brought to the veterinary clinic after experiencing seizures and bleeding. According to veterinarian John Nardott Ricardo, the lioness had to undergo a 3-hour-long session of CT scans to its chest, skull and abdomen in order to diagnose the source of its health problems. Nardott believes there is a possibility that Fafa has liver damage, which may have arisen from a cancerous tumour Fafa had in 2010. REUTERS/Ueslei Marcelino (BRAZIL - Tags: ANIMALS SOCIETY) 

Fender, a 20-year-old marine Loggerhead turtle is seen during a CT scan at the Israeli Veterinary in Beit Dagan, near Tel Aviv, April 25, 2006. Fender is suffering from excessive air in the lungs. The turtle was caught by fishermen in the Mediterranean sea, off the coast of Israel six months ago. REUTERS/Gil Cohen Magen 

Fender, a 20-year-old marine Loggerhead turtle is seen during a CT scan at the Israeli Veterinary in Beit Dagan, near Tel Aviv, April 25, 2006. Fender is suffering from excessive air in the lungs. The turtle was caught by fishermen in the Mediterranean sea, off the coast of Israel six months ago. REUTERS/Gil Cohen Magen