| CMMS | Columbia Mental Maturity Scale |
|---|---|
| CROME | congenital cataracts-epileptic fits-mental retardation [syndrome] |
| CTMM-SF | California Test of Mental Maturity-Short Form |
| CVG/MR | cutis verticis gyrata/mental retardation [syndrome] |
| DOOR | deafness, onycho-osteodystrophy, mental retardation [syndrome] |