About the Authors

Zaheer Ud Din Babar

To whom correspondence should be addressed. E-mail: horizon_pharm@yahoo.com

Affiliation Discipline of Social and Administrative Pharmacy, School of Pharmaceutical Sciences, Universiti Sains Malaysia, Penang, Malaysia

Mohamed Izham Mohamed Ibrahim

Affiliation Discipline of Social and Administrative Pharmacy, School of Pharmaceutical Sciences, Universiti Sains Malaysia, Penang, Malaysia

Harpal Singh

Affiliation School of Pharmaceutical Sciences, University College Sedaya International, Kuala Lumpur, Malaysia

Nadeem Irfan Bukahri

Affiliation School of Pharmacy, International Medical University, Kuala Lumpur, Malaysia

Andrew Creese

Affiliation La Grille, Les Ventes de Bourse, France

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

ZUDB was the principal investigator and designed the study with input from MIMI, HS, and NIB. ZUDB and HS did the field study, data entry, and analysis. ZUDB wrote the paper with the contribution of NIB. Statistical testing was performed by ZUDB and NIB. AC did economic analysis and was involved in the initial outline of the study while he was the consultant to the “WHO/HAI project on medicine prices.” MIMI, HS, and AC participated in editing the article. All the authors approved the text for final submission.