18.327
Expression in head described (for a body of data) as "head, usually cephalic sensory structures."
One of two insertions; not specified which:P{lArB}A247.1M3La or P{lArB}A247.1M3Lb
One of two insertions; not specified which:P{lArB}A247.1M3La or P{lArB}A247.1M3Lb