CREATE TABLE table_20135 ("Condition" CLOB, "Prothrombin time" CLOB, "Partial thromboplastin time" CLOB, "Bleeding time" CLOB, "Platelet count" CLOB)

How many entries for prothrombin time are there where platelet count is 'decreased or unaffected'?
SELECT COUNT("Prothrombin time") FROM table_20135 WHERE "Platelet count" = 'Decreased or unaffected'
SELECT COUNT("Prothrombin time") FROM "table_20135" WHERE "Platelet count" = 'Decreased or unaffected'