Former UN boss Kofi Annan has called for immediate end to the ongoing strike by members of the Ghana Medical Association.Kofi Annan is asking all parties who have roles to play in finding a solution to the strike to do so quickly to end the stalemate.The former UN Secretary General was speaking to media after paying a courtesy call on President John Mahama at the Flagstaff House. It is the first time he is meeting with the President after his investiture in January.Meanwhile, reports reaching Myjoyonline.cm indicate that authorities of Korle Bu Teaching Hospital have been forced to shut down the Children’s Out Patient Department two days into the doctor’s intensified strike.Doctors have stayed away from the public hospitals in protest over government’s failure to address their welfare concerns.At the time Joy News reached the Surgical Medical Emergency unit earlier Tuesday, the doctors were not at post.