1887

oa South African Medical Journal - A new system of refraction for use by the general practitioner

Volume 52, Issue 9
  • ISSN : 0256-9574

 

Abstract

A rapid, simple and economical method of refraction with a circular slide rule is descriptionbed.

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/content/m_samj/52/9/AJA20785135_18109
1977-08-01
2017-07-26

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