A human chain was formed in front of Patuakhali Press Club yesterday demanding better health service and setting up of a medical college at the district headquarters. Patuakhali Development Foundation (PDF) organised the human chain. Golam Mostafa Talukder, executive director of PDF, AL leader Kazi Alamgir, journalist Nirmal Kumar Rakhit spoke at the programme. The participants also demanded immediate filling up of vacant posts at the hospital and health complexes. Sources said, 16 out of 33 doctors' posts are lying vacant for long at the 250-bed Patuakhali General Hospital.