SINGAPORE, Oct 11 -- Prime Minister Datuk Seri Dr Mahathir Mohamad and wife Datin Seri Dr Siti Hasmah Mohd Ali (right) leaving Mount Elizabeth Hospital here after visiting His Majesty Yang di-Pertuan Agong Sultan Salahuddin Abdul Aziz Shah.With them is Her Majesty Raja Permaisuri Agong Tuanku Siti Aishah.His Majesty Sultan Salahuddin is progressively recovering after undergoing a minor operation at the hospital last Saturday, according to Istana Negara Grand Chamberlain, Datuk Zubir Ali.-- BERNAMApic Copyright Reserve.