(1)
Bhaskar, R. .; Singh, S. .; Singh, P. .; Singh, S. K. .; Gaur, P. S. .; Pandey, S. . Measurement of Procalcitonin in Acute Exacerbation of COPD and Its Correlation to Spirometric Indices. IJRDPL 2017, 6, 2833 - 2839.