ninety-day
2.A great?grandmother of mine, who was a friend of Gibbon, lived to the age of ninety-two, and to her last day remained a terror to all her descendents.
3.This is a momentous and historic day : July first, nineteen ninety-seven.
4.Ninety recipient mice were divided into 6 groups after transplantation: A, B, C, D, E, F groups, 15 mice each. They were intra-abdominally injected with Rg3 3 mg/kg, Rg3 6 mg/kg, Rg3 9 mg/kg,IL-2 and normal saline (NS), respectively. They were injected began from day 15 after PBSCT, daily for successive 15 dats per month, for a total of 3 months.

