A patient from the Larco Herrera Psychiatric Hospital marches in a firefighter's costume during the hospital's Independence Day parade in Lima, Peru, Wednesday, July 22, 2015. The parade is held on the hospital's campus every year ahead of the Andean nation's official Independence Day celebrations on July 28. (Photo by Martin Mejia/AP Photo)

Patients from the Larco Herrera Psychiatric Hospital wear costumes in the likeness of the first governor and founder of the Inca civilization, Manco Capac, right, and his wife Mama Ocllo, during the hospital's Independence Day parade in Lima, Peru, Wednesday, July 22, 2015. (Photo by Martin Mejia/AP Photo)

A patient wearing a costume representing the Motherland parades during Independence Day celebrations, at the Larco Herrera psychiatric hospital in Lima July 22, 2015. The hospital, founded in 1917 and the biggest of its kind in Peru, currently houses more than 450 patients. Peru will celebrate its Independence Day on July 28. (Photo by Mariana Bazo/Reuters)

A patient in military costume sings the national anthem during a parade, as part of Independence Day celebrations, at the Larco Herrera psychiatric hospital in Lima July 22, 2015. (Photo by Mariana Bazo/Reuters)

A patient in military costume and facepainted with the colours of the Peruvian flag, parades during Independence Day celebrations, at the Larco Herrera psychiatric hospital in Lima July 22, 2015. (Photo by Mariana Bazo/Reuters)

A patient wearing a costume representing the Motherland parades during Independence Day celebrations, at the Larco Herrera psychiatric hospital in Lima July 22, 2015. (Photo by Mariana Bazo/Reuters)

Patients in costume parade during Independence Day celebrations, at the Larco Herrera psychiatric hospital in Lima July 22, 2015. (Photo by Mariana Bazo/Reuters)

Patients embrace each other during a parade for Independence Day celebrations, at the Larco Herrera psychiatric hospital in Lima July 22, 2015. (Photo by Mariana Bazo/Reuters)

A patient in military costume parades as part of Independence Day celebrations, at the Larco Herrera psychiatric hospital in Lima July 22, 2015. (Photo by Mariana Bazo/Reuters)

A patient in military costume parades as part of Independence Day celebrations, at the Larco Herrera psychiatric hospital in Lima July 22, 2015. (Photo by Mariana Bazo/Reuters)

Patient in costume parades during Independence Day celebrations, at the Larco Herrera psychiatric hospital in Lima July 22, 2015. (Photo by Mariana Bazo/Reuters)

Patients in military costumes parade during Independence Day celebrations, at the Larco Herrera psychiatric hospital in Lima July 22, 2015. (Photo by Mariana Bazo/Reuters)

Patients in military costumes parade during Independence Day celebrations, at the Larco Herrera psychiatric hospital in Lima July 22, 2015. (Photo by Mariana Bazo/Reuters)

Patients in military costumes parade during Independence Day celebrations, at the Larco Herrera psychiatric hospital in Lima July 22, 2015. (Photo by Mariana Bazo/Reuters)

Patients in military costumes rest after a parade during Independence Day celebrations, at the Larco Herrera psychiatric hospital in Lima July 22, 2015. (Photo by Mariana Bazo/Reuters)

A patient from the Larco Herrera Psychiatric Hospital wears a costumes in the likeness of Peru's Independence hero Don Jose de San Martin during the hospital's Independence Day parade in Lima, Peru, Wednesday, July 22, 2015. (Photo by Martin Mejia/AP Photo)