We are using multimap in non-CEPH families to map the positions of
highly polymorpic microsatellite markers on human chromosomes.  Though
many of these markers have been roughly mapped by large consortia, we
need to obtain more more precise mapping data from larger sample
sizes.  The map positions thus obtained are then used in linkage
analysis (nonparametric sib pair method, primarily) of bavioral
phenotypes.