Dr. K. Harish 2021. IMPACT OF DIGITAL RADIOGRAPHY ON COLLIMATION PRACTICES IN LUMBAR SPINE IMAGING: A COMPARATIVE STUDY OF ANALOGUE AND DIGITAL TECHNIQUES. Journal of Population Therapeutics and Clinical Pharmacology. 28, 2 (Dec. 2021), 824–827. DOI:https://doi.org/10.53555/9jzm6208.