[Age changes in the calcium fixation level in a reptile, the grass snake].
D000375:Aging; D000818:Animals; D002118:Calcium; D002136:Calcium, Dietary; D017812:Colubridae; D006801:Humans; D006109:Poaceae; D012104:Reptiles; D012911:Snakes
D002136:Calcium, Dietary; D002118:Calcium
AGING; CALCIUM; SNAKES