instruction: Which Partial thromboplastin time has a Prothrombin time of prolonged, and a Bleeding time of unaffected, and a Condition of vitamin k deficiency or warfarin? Question 6
response: SELECT "Partial thromboplastin time" FROM table_42611 WHERE "Prothrombin time" = 'prolonged' AND "Bleeding time" = 'unaffected' AND "Condition" = 'vitamin k deficiency or warfarin'