Given an abstract of a paper, generate a title for this paper such that conveys the key focus of the paper.

Abstract: A retrospective review of hospital records for 333 patients admitted to a large community teaching hospital by family physicians and family practice residents was performed to determine whether teaching programs in family practice led to a significant increase in the cost of care to patients. Three patient populations were identified for comparison: patients admitted by private family physicians when residents were not involved in patient care, patients admitted by the same family physicians while they served as attending physicians on the family practice service and allowed residents to participate in the care of their patients, and patients admitted by residents from the patient population at the Family Practice Center. After taking into account differences in case mix, an analysis of laboratory charges, radiology use, frequency of procedures, and use of consultants showed that the three groups were not different. Family practice residents managed their own patients as cost effectively as physicians in private practice, which suggests that experience alone is not necessary to develop methods of cost-efficient care. When these two groups were combined into a teaching unit, with few exceptions this efficiency was maintained. These results imply that the introduction of family practice residents into patient care does not invariably increase expenses to the patient.
The influence of a family practice residency on the costs of inpatient diagnostic testing.

Abstract: Respiration in rapid-eye-movement sleep (REMS) is known to be highly variable. The purpose of this study was to investigate the source of this variability and to determine which ordering principles remained operative in REM sleep. In unrestrained, naturally sleeping cats we recorded the electroencephalogram, electrooculogram, neck electromyogram, and diaphragmatic electromyogram (EMG) and computed its moving average (MAdi). As a reference, we first examined MAdi during "tonic" REMS, since breathing is fairly regular in this state. "Control" ranges for peak amplitude (PEMG), inspiratory time (TI), duration of postinspiratory inspiratory activity, expiratory time, and the calculated inspiratory slope (PEMG/TI) were determined by overlaying individual breath traces of the time course of MAdi during tonic REMS to form a composite tracing. Next, the time course of the EMG during individual breaths in slow-wave sleep (SWS) and a complete period of consecutive breaths in REMS (both tonic and phasic) were compared with this tonic REMS composite. The number of eye movements per breath was tabulated as an index of phasic activity. The inspiratory slopes during SWS and tonic REMS were similar. However, during phasic REMS, many breaths displayed either increases (excitation) or decreases (inhibition) in slope compared with the "typical" breaths seen in tonic REMS. The occurrence of these altered slopes increased with the frequency of phasic events. TI was inversely related to the slope of the EMG, which tended to minimize changes in PEMG.(ABSTRACT TRUNCATED AT 250 WORDS)
Control of activity of the diaphragm in rapid-eye-movement sleep.

Abstract: Abnormalities of coagulation and fibrinolysis in 12 head-injured patients were studied in early (within 24 hours of onset) and late (10th to 17th day after onset) stages. alpha 2 Plasmin inhibitor (alpha 2PI), antithrombin III (ATIII), and fibrinopeptide A (FPA) and B beta 15-42 (FPB beta) were measured in particular, in addition to the usual tests (platelet count (PLT), prothrombin time (PT), partial thromboplastin time, fibrinogen, and fibrin/fibrinogen degradation products (FDP)). alpha 2PI was abnormally lower, and FPA and FPB beta were much higher; fibrinogen and ATIII were moderately lower in the early stage than in the late stage in 6 head-injured patients with postoperative intracranial hemorrhage. alpha 2PI, ATIII, and fibrinogen were moderately lower and FPA was moderately higher in the early stage than in the late stage in 6 head-injured patients without postoperative intracranial hemorrhage. PLT and fibrinogen were lower, alpha 2PI was much lower, and FPA was much higher in the 6 patients with postoperative intracranial hemorrhage than in the 6 patients without postoperative intracranial hemorrhage. One patient with acute epidural and subdural hematomas had recurrent postoperative intracerebral hematoma twice. This recurrent hemorrhage was due to disseminated intravascular coagulation (DIC) caused by primary brain damage and was associated with extremely high FPA and FPB beta levels and abnormally low alpha 2PI and PLT. Fresh-frozen plasma and intravenous low-dose heparin were administered after the two recurrent hemorrhages, after which FPA and FPB beta normalized immediately, although other screening tests showed only gradual improvement.(ABSTRACT TRUNCATED AT 250 WORDS)

Relationship between abnormalities of coagulation and fibrinolysis and postoperative intracranial hemorrhage in head injury.

