she lived With her daughter in US just 3 months and she camed back because of health problem, NOW she is living in her country since that time. Her operation was done since 2011 in Pakistan and her health is good now. Alil bit medical treatment was treated in US. Now she want to go back to US to her daughter who were petitioner. NOW tell me can we apply SB-1 visa and if we apply then how much chance for visa will be grant to her,, because she is 65 years old and just camed back for health reason. her green card expiring after 6 months.