Gupta, R. ., Sharma, S. ., ., P. ., & Saxena, S. . (1969). Changing panorama for surveillance of device-associated healthcare infections: Challenges faced in implementation of current guidelines. Indian Journal of Medical Microbiology, 36(1), 18-25. https://doi.org/10.4103/ijmm.IJMM_18_50 (Original work published 1969)