A patient lies on a bed as she recovers at an obstetric fistula repair centre in Maiduguri, Nigeria July 31, 2018. Picture taken July 31, 2018. REUTERS/Afolabi Sotunde

Riot police officers stand guard as leftovers of broken eggs thrown by demonstrators are seen on their shields and on the ground, during a protest outside a notary's office to prevent an e-auction of repossessed properties in Athens, Greece, March 21, 2018. REUTERS/Alkis Konstantinidis TPX IMAGES OF THE DAY

Riot police officers stand guard as leftovers of broken eggs thrown by demonstrators are seen on their shields and on the ground, during a protest outside a notary's office to prevent an e-auction of repossessed properties in Athens, Greece, March 21, 2018. REUTERS/Alkis Konstantinidis

A riot police officer raises his shield to block an egg thrown by demonstrators during a protest outside a notary's office to prevent an e-auction of repossessed properties in Athens, Greece, March 21, 2018. REUTERS/Alkis Konstantinidis

Demonstrators scuffle with riot police officers during a protest outside a notary's office to prevent an e-auction of repossessed properties in Athens, Greece, March 21, 2018. REUTERS/Alkis Konstantinidis

Demonstrators scuffle with riot police officers during a protest outside a notary's office to prevent an e-auction of repossessed properties in Athens, Greece, March 21, 2018. REUTERS/Alkis Konstantinidis

Demonstrators scuffle with riot police officers during a protest outside a notary's office to prevent an e-auction of repossessed properties in Athens, Greece, March 21, 2018. REUTERS/Alkis Konstantinidis

Demonstrators scuffle with riot police officers during a protest outside a notary's office to prevent an e-auction of repossessed properties in Athens, Greece, March 21, 2018. REUTERS/Alkis Konstantinidis

Demonstrators scuffle with riot police officers during a protest outside a notary's office to prevent an e-auction of repossessed properties in Athens, Greece, March 21, 2018. REUTERS/Alkis Konstantinidis

Demonstrators scuffle with riot police officers during a protest outside a notary's office to prevent an e-auction of repossessed properties in Athens, Greece, March 21, 2018. REUTERS/Alkis Konstantinidis

Demonstrators scuffle with riot police officers during a protest outside a notary's office to prevent an e-auction of repossessed properties in Athens, Greece, March 21, 2018. REUTERS/Alkis Konstantinidis

Demonstrators flee tear gas as they scuffle with riot police officers during a protest outside a notary's office to prevent an e-auction of repossessed properties in Athens, Greece, March 21, 2018. REUTERS/Alkis Konstantinidis

Demonstrators shout slogans in front of a riot police cordon during a protest outside a notary's office to prevent an e-auction of repossessed properties in Athens, Greece, March 21, 2018. REUTERS/Alkis Konstantinidis

An injured demonstrator is detained by riot police during a protest against home auctions in Athens, Greece, March 14, 2018. REUTERS/Costas Baltas TPX IMAGES OF THE DAY

Demonstrators are pushed back by with riot police officers during a protest against home auctions in Athens, Greece, March 14, 2018. REUTERS/Costas Baltas

Leader of Popular Unity Party Panagiotis Lafazanis shouts slogans through a loudspeaker during a protest against home auctions in Athens, Greece, March 14, 2018. REUTERS/Costas Baltas

A demonstrator scuffles with riot police officers during a protest against home auctions in Athens, Greece, March 14, 2018. REUTERS/Costas Baltas

A demonstrator argues with riot police officers during a protest against home auctions in Athens, Greece, March 14, 2018. REUTERS/Costas Baltas

An injured demonstrator is detained by riot police during a protest against home auctions in Athens, Greece, March 14, 2018. REUTERS/Costas Baltas

A demonstrator shouts slogans through a loudspeaker next to a riot police cordon during a protest against home auctions in Athens, Greece, March 14, 2018. REUTERS/Costas Baltas

A demonstrator is detained by riot police during a protest against home auctions in Athens, Greece, March 14, 2018. REUTERS/Costas Baltas

A demonstrator is detained by riot police during a protest against home auctions in Athens, Greece, March 14, 2018. REUTERS/Costas Baltas

Demonstrators scuffle with riot police officers during a protest against home auctions in Thessaloniki, Greece, March 7, 2018. REUTERS/Alexandros Avramidis

Demonstrators scuffle with riot police officers during a protest against home auctions in Thessaloniki, Greece, March 7, 2018. REUTERS/Alexandros Avramidis

Demonstrators scuffle with riot police officers during a protest against home auctions in Thessaloniki, Greece, March 7, 2018. REUTERS/Alexandros Avramidis

A Demonstrator scuffles with riot police officers during a protest against home auctions in Thessaloniki, Greece, March 7, 2018. REUTERS/Alexandros Avramidis

Demonstrators scuffle with riot police officers during a protest against home auctions in Thessaloniki, Greece, March 7, 2018. REUTERS/Alexandros Avramidis

Riot police officers stand guard outside a notary office during a protest against home auctions in Thessaloniki, Greece, March 7, 2018. REUTERS/Alexandros Avramidis

A Demonstrator shouts slogans in front of riot police officers during a protest against home auctions in Thessaloniki, Greece, March 7, 2018. REUTERS/Alexandros Avramidis

Demonstrators scuffle with riot police officers during a protest against home auctions in Thessaloniki, Greece, March 7, 2018. REUTERS/Alexandros Avramidis

Demonstrators scuffle with riot police officers during a protest against home auctions in Athens, Greece, February 28, 2018. REUTERS/Costas Baltas

Demonstrators scuffle with riot police officers during a protest against home auctions in Athens, Greece, February 28, 2018. REUTERS/Costas Baltas

Leader of Popular Unity Party Panagiotis Lafazanis argues with riot police officers during a protest against home auctions in Athens, Greece, February 28, 2018. REUTERS/Costas Baltas

Leader of Popular Unity Party Panagiotis Lafazanis scuffles with riot police officers during a protest against home auctions in Athens, Greece, February 28, 2018. REUTERS/Costas Baltas

Protesters shout slogans during a demonstration against property foreclosure auctions outside a court in Athens, Greece, January 10, 2018. REUTERS/Alkis Konstantinidis

Protesters take part in a demonstration against property foreclosure auctions outside a court in Athens, Greece, January 10, 2018. The placards read "No to the crime of auctions". REUTERS/Alkis Konstantinidis

Demonstrators scuffle with riot police officers during a protest against home auctions in Thessaloniki, Greece, November 29, 2017. REUTERS/Alexandros Avramidis TPX IMAGES OF THE DAY

Demonstrators scuffle with riot police officers during a protest against home auctions in Thessaloniki, Greece, November 29, 2017. REUTERS/Alexandros Avramidis

Demonstrators scuffle with riot police officers during a protest against home auctions in Thessaloniki, Greece, November 29, 2017. REUTERS/Alexandros Avramidis

Demonstrators scuffle with riot police officers during a protest against home auctions in Thessaloniki, Greece, November 29, 2017. REUTERS/Alexandros Avramidis

Demonstrators shout slogans in front of a Bank of Greece branch during a protest against home auctions in Thessaloniki, Greece, November 29, 2017. REUTERS/Alexandros Avramidis

Eleni Skopelitis smokes in her kitchen in the suburb of Nikaia, in Athens, Greece, March 24, 2017. The Skopelitis family house is up for auction in September as they cannot longer pay their monthly loan obligations. Picture taken March 24, 2017. REUTERS/Alkis Konstantinidis TPX IMAGES OF THE DAY

Eleni Skopelitis smokes in her kitchen in the suburb of Nikaia, in Athens, Greece, March 24, 2017. The Skopelitis family house is up for auction in September as they cannot longer pay their monthly loan obligations. Picture taken March 24, 2017. REUTERS/Alkis Konstantinidis

Vassilis Skopelitis speaks during an interview with Reuters as his wife Eleni looks in their house in the suburb of Nikaia, in Athens, Greece, March 24, 2017. The Skopelitis family house is up for auction in September as they cannot longer pay their monthly loan obligations. Picture taken March 24, 2017. REUTERS/Alkis Konstantinidis

Vassilis and Eleni Skopelitis sit in their kitchen in the suburb of Nikaia, in Athens, Greece, March 24, 2017. The Skopelitis family house is up for auction in September as they cannot longer pay their monthly loan obligations. Picture taken March 24, 2017. REUTERS/Alkis Konstantinidis

Eleni Skopelitis in her kitchen in the suburb of Nikaia, in Athens, Greece, March 24, 2017. The Skopelitis family house is up for auction in September as they cannot longer pay their monthly loan obligations. Picture taken March 24, 2017. REUTERS/Alkis Konstantinidis

The Skopelitis family house in the suburb of Nikaia, in Athens, Greece, March 24, 2017. The house is up for auction in September as they cannot longer pay their monthly loan obligations. Picture taken March 24, 2017. REUTERS/Alkis Konstantinidis

The staircase leading to the second floor of the Skopelitis family house in the suburb of Nikaia, in Athens, Greece, March 24, 2017. The house is up for auction in September as they cannot longer pay their monthly loan obligations. Picture taken March 24, 2017. REUTERS/Alkis Konstantinidis

People enjoy the cityscape from atop Lycabettus hill in Athens, Greece, March 26, 2017. Picture taken March 26, 2017. REUTERS/Alkis Konstantinidis

A view of the cityscape of Athens, Greece, March 26, 2017. Picture taken March 26, 2017. REUTERS/Alkis Konstantinidis

Protesters block an entrance to prevent court officials from entering the courtroom and carry out an auction in Athens, Greece, March 29, 2017. The banner in the middle reads " Solidarity is our weapon. "I Won't Pay" movement". Picture taken March 29, 2017. REUTERS/Alkis Konstantinidis

Protesters shout slogans as they block an entrance to prevent court officials from entering the courtroom and carry out an auction in Athens, Greece, March 29, 2017. Picture taken March 29, 2017. REUTERS/Alkis Konstantinidis

Protesters shout slogans as they block an entrance to prevent court officials from entering the courtroom and carry out an auction in Athens, Greece, March 29, 2017. Picture taken March 29, 2017. REUTERS/Alkis Konstantinidis

Dumbbells and a stuffed toy are seen inside a spinal cord injury rehabilitation centre in Douma, the main rebel-stronghold in eastern Ghouta on the outskirts of Damascus, Syria, February 21, 2017. REUTERS/Bassam Khabieh SEARCH "SPINE" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.

Police officer recovers from the blowback of tear gas during clashes in Rawalpindi, Pakistan October 28, 2016. REUTERS/Caren Firouz

A resident retrieves belongings from his house swamped by flood in San Mateo, Rizal, Philippines, August 14, 2016. REUTERS/Erik De Castro

A flood victim retrieves a case of beer from his shop swamped with flood in San Mateo, Rizal, Philippines, August 14, 2016. REUTERS/Erik De Castro

A woman recovers belongings among debris from her house, which was damaged by a mudslide, in the aftermath of Tropical Storm Earl in the town of Huauchinango, in Puebla state, Mexico, August 8, 2016. REUTERS/Imelda Medina

Residents stand at their house, which was damaged by a mudslide, in the aftermath of Tropical Storm Earl in the town of Huauchinango, in Puebla state, Mexico, August 8, 2016. REUTERS/Imelda Medina

A woman recovers belongings from her house, which was damaged by a mudslide, in the aftermath of Tropical Storm Earl in the town of Huauchinango, in Puebla state, Mexico, August 8, 2016. REUTERS/Imelda Medina