We recruited all physicians–teachers and residents–who provided
care in one of the nine family practice teaching units (out of 12) that
enrolled in the study. We excluded physicians who participated in
the pilot trial [21,22] and those who would not be practicing at the
family practice teaching unit during the trial (e.g. residents ending
their residency program, physicians doing rotations outside the
family practice teaching unit, physicians who expected to be
pregnant and physicians planning to retire).