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Ramesh, A and Jagdish, C and Nagapoorinima, M and Rao, Suman PN and Ramakrishnan, AG and Thomas, GC and Dominic, M and Swarnarekha, A (2012) Low cost calibrated mechanical noisemaker for hearing screening of neonates in resource constrained settings. In: Indian Journal of Medical Research, 135 (2). pp. 170-176.