Related Experiment Video
Updated: Jul 16, 2026

Multimodal Volumetric Retinal Imaging by Oblique Scanning Laser Ophthalmoscopy (oSLO) and Optical Coherence Tomography (OCT)
Published on: August 4, 2018
Osler's service: a view of the charts
Larry R Kirkland1, Charles S Bryan
1Department of Medicine, University of South Carolina School of Medicine, Columbia, SC 29203, USA.
Abstract:
It has been asserted that William Osler (1849-1919) shaped the Medical Clinic of the Johns Hopkins Hospital 'to become a pre-eminent facility, first in patient care and later in medical education'. Osler's impact on medical education in the United States is beyond dispute, but few, if any, data support the assertion that patients at the Johns Hopkins Hospital fared better than those at similar hospitals during the late 19th century. Patient records were scanty and were seldom, if ever, signed by Osler or other senior professors. The numerous publications that arose from Osler's service suggest the data were derived not from the hospital charts, but rather from a parallel system of data collection designed mainly for research. Issues raised by this review of the charts on Osler's service reverberate in American medicine.
Related Concept Videos
Interpreting X̄ Charts
An x̄ chart plots the values of individual measurements over time against control limits calculated from historical data. The central line represents the process mean,...
Interpreting R Charts
An R chart plots the range of subsets of measurements collected from a process. Each point on the chart represents the range—defined as the difference between the maximum and minimum values—of a sample...
Run Charts
Pareto Chart
The Pareto chart is named after the Italian economist Vilfredo Pareto, who described the Pareto...
The R Chart
R charts are pivotal for pinpointing shifts in process variability. Stability is indicated when all data points remain within the defined upper and lower...
Interpreting Run Charts

