Comparative studies on vitamin B[sub 12] in developing organism and placenta : human and animal investigations with reference to the effects of low vitamin B[sub 12] diet on tissue vitamin B[sub 12] concentrations in rat
Comparative studies on vitamin B[sub 12] in developing organism and placenta : human and animal investigations with reference to the effects of low vitamin B[sub 12] diet on tissue vitamin B[sub 12] concentrations in rat
Comparative studies on vitamin B[sub 12] in developing organism and placenta : human and animal investigations with reference to the effects of low vitamin B[sub 12] diet on tissue vitamin B[sub 12] concentrations in rat
Comparative studies on vitamin B[sub 12] in developing organism and placenta : human and animal investigations with reference to the effects of low vitamin B[sub 12] diet on tissue vitamin B[sub 12] concentrations in rat