The effect of 1,25-dihydroxyvitamin D<sub>3</sub> [1,25(OH)<sub>2</sub>D<sub>3</sub>] and13-cis-retinoic acid(RA)on the proliferation of a novel human megakaryoblas
The effects of chronic hypoxia on calmodulin levels of lung tissues and small pulmonary ar-terial walls were studied in young pigs, The tissue specimens of hypo