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Research Article

Does the Axillary Lymph Node Ratio Have Any Added Prognostic Value over pN Staging for South East Asian Breast Cancer Patients?

  • Nakul Saxena,

    Affiliation: Saw Swee Hock School of Public Health, National University of Singapore, Singapore, Singapore

    X
  • Mikael Hartman mail,

    mikael_hartman@nuhs.edu.sg

    Affiliations: Saw Swee Hock School of Public Health, National University of Singapore, Singapore, Singapore, Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore

    X
  • Cheng-Har Yip,

    Affiliation: Department of Surgery, Faculty of Medicine, University of Malaya, Lembah Pantai, Kuala Lumpur, Malaysia

    X
  • Nirmala Bhoo-Pathy,

    Affiliation: National Clinical Research Centre, Level 3, Dermatology Block, Hospital Kuala Lumpur, Jalan Pahang, Kuala Lumpur, Malaysia

    X
  • Lay Wai Khin,

    Affiliation: Investigational Medicine Unit, National University Health Systems, National University of Singapore, Singapore, Singapore

    X
  • Nur Aishah Taib,

    Affiliation: Department of Surgery, Faculty of Medicine, University of Malaya, Lembah Pantai, Kuala Lumpur, Malaysia

    X
  • Lai-Meng Looi,

    Affiliation: Department of Pathology, Faculty of Medicine, University of Malaya, Lembah Pantai, Kuala Lumpur, Malaysia

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  • Siew-Eng Lim,

    Affiliation: Department of Hematology Oncology, National University Cancer Institute, National University Health System, Singapore, Singapore, Singapore

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  • Soo-Chin Lee,

    Affiliation: Department of Hematology Oncology, National University Cancer Institute, National University Health System, Singapore, Singapore, Singapore

    X
  • Helena M. Verkooijen

    Affiliations: Saw Swee Hock School of Public Health, National University of Singapore, Singapore, Singapore, Imaging Division, University Medical Center Utrecht, Utrecht, The Netherlands

    X
  • Published: September 24, 2012
  • DOI: 10.1371/journal.pone.0045809

About the Authors

Nakul Saxena, Mikael Hartman, Helena M. Verkooijen
Saw Swee Hock School of Public Health, National University of Singapore, Singapore, Singapore
Mikael Hartman
Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
Cheng-Har Yip, Nur Aishah Taib
Department of Surgery, Faculty of Medicine, University of Malaya, Lembah Pantai, Kuala Lumpur, Malaysia
Nirmala Bhoo-Pathy
National Clinical Research Centre, Level 3, Dermatology Block, Hospital Kuala Lumpur, Jalan Pahang, Kuala Lumpur, Malaysia
Lay Wai Khin
Investigational Medicine Unit, National University Health Systems, National University of Singapore, Singapore, Singapore
Lai-Meng Looi
Department of Pathology, Faculty of Medicine, University of Malaya, Lembah Pantai, Kuala Lumpur, Malaysia
Siew-Eng Lim, Soo-Chin Lee
Department of Hematology Oncology, National University Cancer Institute, National University Health System, Singapore, Singapore, Singapore
Helena M. Verkooijen
Imaging Division, University Medical Center Utrecht, Utrecht, The Netherlands

Corresponding Author

Email: mikael_hartman@nuhs.edu.sg

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: MH HMV. Performed the experiments: NS. Analyzed the data: NS MH NBP HMV LWK. Contributed reagents/materials/analysis tools: CHY NBP NAT SCL SEL LML NS. Wrote the paper: NS MH CHY NBP NAT SCL SEL LML LWK HMV.