CREATE TABLE table_19412902_1 (clubs VARCHAR, group_stage VARCHAR, member_association VARCHAR)

which club in group stage 4 had member association iran
SELECT clubs FROM table_19412902_1 WHERE group_stage = 4 AND member_association = "Iran"
SELECT "clubs" FROM "table_19412902_1" WHERE "Iran" = "member_association" AND "group_stage" = 4