the calvariae were incubated for 24 hr at 37 degrees in 5 % co2/95 % air in medium containing 10 ( -6 ) -10 ( -3 ) m dipicolinate , a chelator of zinc , and then the bones were transferred into medium containing either 10 ( -4 ) m zinc sulfate or vehicle without dipicolinate .
C0043481
zinc
C0078794
zinc sulfate