Anticoagulant of choice for ESR by Wintrobes method -a)  Citrateb)  Heparinc)  Oxalated)  EDTA: (A) ab, (B) cd, (C) bd, (D) ac
Answer is B. Anticoagulant of choice for ESR by  
	Wintrobes method  → Double oxalate & EDTA
	Westergren method → Sodium citrate