Evaluate the collective function of references cited together in a given text segment.
Classify their combined role into one of the following categories: 'method', 'background', or 'result'.

Text:Each individual was also weighed, examined for injuries and reproductive state, and most were subject to a number of standard morphometric measurements, including canine height, head length, body length, and testis length and width (see Schmid and Kappeler 1994 for de®nitions).
Category: