Declarations:
Acknowledgement: We thank Mr Ravinder and Miss Kanika for
helping us in the immunology laboratory.
Funding- The work was funded by the Post Graduate Institute of
Medical Education and Research, Chandigarh via Special Research Grant
2017-18 for MD Thesis (L.P.480)
Conflicts of interest/Competing interests- None
Ethics approval- Approved by the Institute Ethics Committee
(INT/IEC/2017/000299)
Consent to participate- Taken
Consent for publication- Taken
Authors’ contributions: SG collected the data, analysed and
wrote the first draft. AR, JKS, NT and JBAT performed the laboratory
investigations, helped in their interpretation and added intellectual
content to the manuscript. LD, RR and RH managed the patients, helped in
collecting data, analysis and writing the manuscript. KT conceptualized
the project, supervised the data collection, analysis and finalized the
manuscript. All authors approved the final draft.