hui jan tan, abdool alleem hj shahren, ching soong khoo, chen fei ng, wan asyraf wan zaidi, najma kori, petrick periyasamy, choon leng eu, alvin oliver payus, rozita hod.  (2023).  anxiety among hospitalized covid-19 patients: a case-control study from a tertiary teaching hospital in malaysia.  - frontiers in psychiatry.  1-13. 

sy hwan ang, petrick periyasamy, shamsul azhar shah, ramliza ramli, najma kori, chee lan lau.  (2022).  the risk factors for complications and survival outcomes of klebsiella pneumoniae bacteraemia in hospital canselor tuanku muhriz universiti kebangsaan malaysia.  - medical journal malaysia.  409-414. 

najma kori, farida islahudin, muhammad yusuf zawir abd rahim, petrick periyasamy, noraida mohamed shah, ernieda md hatah, lau chee lan.  (2022).  corticosteroid effectiveness among hospitalised covid-19 patients in malaysia.  - journal of infection in developing countries.  1390-1397. 

alex y. c. sim, ainal a. naffi, tang s. fai, najma kori, wan a. w. zaidi, petrick periyasamy, norshamsiah md din, mushawiahti mustapha, ayesha mohd zain.  (2022).  bilateral intermediate uveitis in a healthy teenager with the multisystem inflammatory syndrome in children secondary to covid-19 infection.  - journal of medical virology.  1269-1271. 

chee ken chan, thian yin lam, langkeas mohanavel, jeffrie a ghani, afieq syabil khairul anuar...najma kori, helmi sulaiman.  (2022).  development and validation of the knowledge, attitude and practice questionnaire (launderkap) regarding white coat use among medical students during clinical practice.  - american journal of infection control.  1374-1380. 

norfazilah ahmad, norzehan fatimah mohd ali, azmawati mohammed nawi, mohd rohaizat hassan, azimatun noor aizuddin, rozita hod, faiz daud, sharifah azura salleh, petrick periyasamy, abdul halim abdul gafor, najma kori.  (2021).  clinical characteristics of patients with coronavirus disease 2019 (covid-19) in a teaching hospital in malaysia.  - journal of infection in developing countries.  1059-1065. 

petrick periyasamy, ng boon hau, umi kalsom satariah ali, zetti zainol rashid, najma kori.  (2021).  aerosolized sars-cov-2 transmission risk: surgical or n95 masks?.  - infection control & hospital epidemiology.  1150-1152. 

m. mohamed said, a. shahren, s. shaharir, h. tan, n. kori.  (2021).  central nervous system hemophagocytic lymphohistiocytosis in an unlikely teenager: a case report.  - international journal of rheumatic diseases.  128. 

azlina ibrahim, isa naina mohamed, lau chee lan, ramliza ramli, najma kori, petrick periyasamy.  (2021).  an observational prospective study on the appropriateness of ceftriaxone use in medical wards of ppukm.  - international journal of infectious diseases (ijid).  104. 

nurul adilla hayat jamaluddin, petrick periyasamy, chee lan lau, sasheela ponnampalavanar, pauline siew mei lai, ramliza ramli, toh leong tan, najma kori, mei kuen yin, nur jannah azman, rodney james, karin thursky and isa naina mohamed.  (2021).  point prevalence survey of antimicrobial use in a malaysian tertiary care university hospital.  - antibiotics.  1-13. 

petrick periyasamy, navaneedha lingam mahalingam, najma kori, andrea ban yu lin, ramliza ramli, isa naina mohamed, lau chee lan.  (2021).  time to clinical stability in hcap in a tertiary center hospital in kuala lumpur.  - international journal of infectious diseases.  106. 

nor azila ma, nor azian am, azmawati mn, sharifah azura s, petrick p, najma k, mohd rohaizat h, norfazilah a, anita s, hanita o, tuti ningseh md, nurul syakima am, ezanee azlina, siti aishah, nurul syeefa', abdul rashid, abdul halim, hanafiah hr, rahman j.  (2021).  covid-19 in malaysia: exposure assessment and prevention practices among healthcare workers at a teaching hospital.  - journal of infection in developing countries.  1816-1824. 

ahmad izuddin mustaffa, petrick periyasamy, lau chee lan, ramliza ramli, najma kori,.  (2021).  the overly attached bacteria.  - international journal of infectious disease.  167-168. 

wan asyraf wan zaidi, muhamad danial zulkifli, najma kori, petrick k. periyasamy, wan nur nafisah wan yahya.  (2021).  ischaemic stroke in covid-19 patients in hospital canselor tuanku muhriz, national university of malaysia medical centre.  - international journal of stroke.  159. 

juen kiem tan, dalleen leong, hemalatha munusamy, nor hazwani zenol ariffin, najma kori, rozita hod, petrick periyasamy.  (2021).  the prevalence and clinical significance of presymptomatic covid-19 patients: how we can be one step ahead in mitigating a deadly pandemic.  - bmc infectious diseases.  1-10. 

azmawati mohammed nawi, azimatun noor aizuddin, rozita hod, norfazilah ahmad, faiz daud, sharifah azura salleh, najma kori, petrick periyasamy, mohd rohaizat hassan, hanafiah harunarashid, kamaruzaman jusoff & mohd afiq arifin.  (2021).  managing covid-19 pandemic in teaching hospitals: an early preparedness setting (pengurusan pandemik covid-19 di hospital pengajar: suatu penetapan persediaan awal).  - sains malaysiana.  1165-1173. 

syahrul sazliyana shaharir, sakthiswary rajalingham, rozita mohd, najma kori, adawiyah jamil.  (2021).  herpes zoster in a multi-ethnic systemic lupus erythematosus (sle) cohort: clinical features and risk factors.  - annals of the rheumatic diseases.  611-612. 

afifah aqilah abdul malik, petrick periyasamy, najma kori, asrul abdul wahab, chuan hun ding.  (2021).  a spuriously negative cryptococcal antigen assay result in disseminated cryptococcosis: the deception of the postzone phenomenon.  - annals of clinical & laboratory science.  430-433. 

ng boon hau, andrea ban yu-lin, nik nuratiqah nik abeed, mohamed faisal abdul hamid, soo chun ian, najma kori, petrick periyasamy.  (2020).  covid-19 detected from targeted contact tracing, attempting to see the pattern in random happenings: early lessons in malaysia.  - medical journal of malaysia.  582-584. 

ng boon hau, nik nuratiqah nik abeed, mohamed faisal abdul hamid, soo chun ian, low hsueh jing, najma kori, petrick periyasamy, norlaila mustafa, andrea ban yu-lin.  (2020).  a descriptive study of the psychological experience of health care workers in close contact with a person with covid-19.  - medical journal of malaysia.  485-489. 

nurul azmawati mohamed, nizam baharom, wan sw sulaiman, zetti z rashid, wong kon ken, umi k ali, siti n othman, muttaqillah n samat, najma kori, petrick periyasamy, nor a zakaria, agni n kumar sugurmar, cheong xiong khee, siti m saniman, ilina isahak.  (2020).  early viral clearance among covid-19 patients when gargling with povidone-iodine and essential oils: a clinical trial.  - international medical journal.  651-654. 

boon hau ng, nik nuratiqah nik abeed, andrea ban yu-lin, mohamed faisal abdul hamid, chun ian soo, najma kori, shahizon azura mohamed mukari, isa azzaki zainal, lydia kamaruzaman, muhammad yusuf abu shamsi, halim gafor, norlaila mustafa, wan nur nafisah w.  (2020).  lung computed tomography patterns of a cluster of asymptomatic young males with covid-19 admitted to a teaching hospital in kuala lumpur.  - medical journal of malaysia.  368-371. 

min h. cheah, eon t. gan, nur j. azman, najma kori, petrick periyasamy, siti-azdiah abdul-aziz.  (2020).  factors affecting modification of initial antiretroviral therapy regimen in hiv positive patients.  - journal of pharmaceutical policy and practice.  10. 

najma kori, razman jarmin, petrick periyasamy, lau chee lan.  (2019).  new perspective of antimicrobial stewardship: changing surgeon's paradigm.  - antimicrobial resistance and infection control.  144-145. 

azlina ibrahim, isa naina mohamed, chee lan lau, ramliza ramli, najma kori, petrick periyasamy.  (2019).  appropriateness of ceftriaxone use in medical wards of ukmmc - how compliant are we?.  - antimicrobial resistance and infection control.  148. 

najma kori, wan asyraf wan zaidi, rabani remli, azman ali raymond, norlinah mohamed ibrahim, hui jan tan, syed zulkifli syed zakaria, zhe kang law, kartini ahmad, wan nafisah wan yahya, ramesh sahathevan.  (2018).  a validation study of the bahasa malaysia version of the national institute of health stroke scale.  - neurology asia.  225-232.