Washington [US], September 11 (ANI): US-based rights group Campaign For Uyghurs (CFU) marked three years since the disappearance of Uyghur Muslim Dr Gulshan Abbas , the sister of the group's Executive Director Rushan Abbas in China. Gulshan's daughter Ziba Murat has launched a campaign calling for her mother's release on social media, CFU said in a statement on Saturday.…