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Article History

Received: 7 March 2018

Accepted: 9 January 2019

First Online: 24 January 2019

Ethics approval and consent to participate

: Ethical approvals were issued by the relevant Institutional Research and Ethics Boards (IREBs) of Shah Bhitae Hospital Latifabad, Hyderabad Liaquat University Hospital Hyderabad / Jamshoro, Sindh Government Hospital Qasimabad, Hyderabad, Sayed Baqadar Shah Civil Hospital Matiari and Institute of chest diseases Kotri Sindh, Pakistan, (Vide Letter No: SBGH/L.ABAD HYD-1575; Dated: 13–04-17, LUH/Estt/− 23,176/14; Dated: 06-08-2016, MS-SGHQ/HYD/2187: Dated:13–04-17, CS/CH/MAT:1761; Dated:18–05-16 and ICDK/771; Dated: 12–04-17, respectively). Oral informed consent assent was acquired from every caregiver of children upon enlistment because of their illiterate status.

: Not applicable.

: The authors declare that they have no competing interests.

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