Pre-analytical variables affecting breast cancer biomarker expression: A controlled single-specimen study of fixation duration, cold ischemia time, and fixative preparation in a low-resource setting

• Clément Parfait Ndengue ,

  Roles Conceptualization, Investigation, Methodology, Writing – original draft

  * E-mail: ndengueparfait@yahoo.fr

  Affiliation Douala Gynaeco-Obstetric and Pediatric Hospital (DGOPEH), Douala, Cameroon

  https://orcid.org/0000-0003-1267-7409

  ⨯
• Paul Jean Adrien Atangana,

  Roles Validation, Visualization

  Affiliations Douala Gynaeco-Obstetric and Pediatric Hospital (DGOPEH), Douala, Cameroon, Faculty of Medicine and Pharmaceutical Sciences, University of Douala, Douala, Cameroon

  ⨯
• Gilbert Roger Ateba,

  Roles Data curation, Formal analysis

  Affiliation Douala Gynaeco-Obstetric and Pediatric Hospital (DGOPEH), Douala, Cameroon

  ⨯
• Samuel Honoré Mandengue,

  Roles Software, Writing – review & editing

  Affiliation Faculty of Sciences, University of Douala, Douala, Cameroon

  ⨯
• Emile Telesphore Mboudou,

  Roles Project administration, Resources

  Affiliations Douala Gynaeco-Obstetric and Pediatric Hospital (DGOPEH), Douala, Cameroon, Faculty of Medicine and Biomedical Sciences, University of Yaounde I, Yaounde, Cameroon

  ⨯
• Carole Else Eboumbou Moukoko

  Roles Supervision

  Affiliation Faculty of Medicine and Pharmaceutical Sciences, University of Douala, Douala, Cameroon

  ⨯