NTR: mid-upper arm circumference datum

[johnwjudkins]

label: mid-upper arm circumference datum alternative term: MUAC definition: A length measurement datum that is the specified output of an assay measuring the length around an upper arm, taken midway along the upper arm. definition source: The Mother and Child Health and Education Trust parent: length measurement datum subclass axiom: 'is quality measurement of' some (length and ('characteristic of' some arm))

[mgiglio99]

Discussed on June 27th call - looks good.