Excess carbon 13 ratio

Excess carbon 13 ratio (observable entity)

active

Code	`1013631000000109`
Semantic tag	observable entity
Module	uk-edition
Definition	primitive
Effective time	20160401

Parents (3)

364177000Breath test feature observable entity
364712009Laboratory test observable observable entity
1032141000000108Ratio measurement observable observable entity

Children (0)

None (leaf concept).