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The short tests of motivation (Richmond) and, to a lesser extent, dependency (TFm) were good predictors of giving up tobacco and can be recommended in primary care.

The evaluation and treatment of bursitis in the foot is a complex problem for the clinician. There is no one standard approach or set treatment for the patient who presents with pain suspected of being secondary to bursal involvement, primarily because there are myriad conditions and anatomical sites involved. Compounding this problem is the wide variation in the presence of these structures from patient to patient. Therefore, each distinct pathologic situation must be examined, diagnosed, and treated, based on its individual anatomical and etiologic factors. In the interest of completeness, the special anatomy of bursae and their specific pathologic conditions are reviewed.

In the kinetic theories of polymerization of isoprene with butyllithium as initiator some authors that the "living molecules" are associated. There exists also some experimental evidence for such an a s s~c i a t i o n~.~~~) ; the measurements were performed, however, at comparatively large concentrations. In the present work, it is attempted to measure the degree of association in heptane as a function of the concentration of active lithium by using different experimental methods.The samples were polymerized with oligomeric isoprenyllithium in heptane as described earlier '). The viscosity measurements were performed by using an Ubbelohde viscosimeter attached to a high vacuum line. The light scattering intensity was determined with a Chromatix KMX 6 equipment which is especially suited for small angle light scattering. All operations were performed under argon as usual with organometallic compounds.

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