    Sentence 1: Wyeth estimates that 1.2 million women  continue to take Prempro pills , down from about 3.4  million before the study was halted Last summer .    Sentence 2: Wyeth estimates that 1,2 million women  are stilizaking Prempro pills , down from about 3,4  millioM@efore the WHI study was halted Last year .