Table schema:
CREATE TABLE table_221653_1 (platelet_count VARCHAR, partial_thromboplastin_time VARCHAR, bleeding_time VARCHAR)

Question: What is the platelet count when partial thromboplastin time and bleeding time are unaffected?
SQL: SELECT platelet_count FROM table_221653_1 WHERE partial_thromboplastin_time = "Unaffected" AND bleeding_time = "Unaffected"