Dr Nahyan Helal pictured in his clinic in Khalifa City, Abu Dhabi. He recently opened a second medical centre in Madinat Zayed to cater to thousands of oil industry workers. Victor Besa / The National
Dr Nahyan Helal pictured in his clinic in Khalifa City, Abu Dhabi. He recently opened a second medical centre in Madinat Zayed to cater to thousands of oil industry workers. Victor Besa / The National

More than 20,000 Abu Dhabi workers given health screenings