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Comments on Hynes et al . Prevalence of Marijuana Use among University Students in Bolivia, Colombia, Ecuador and Peru. Int. J. Environ. Res. Public Health 2015, 12 , 5233–5240

Author

Listed:
  • Maria Claudia Martinez-Novack

    (Facultad de Ciencias de la Salud, Escuela de Medicina, Universidad Peruana de Ciencias Aplicadas; Alameda San Marcos Avenue, block 2, Chorrillos. Lima 09, Lima, Peru)

  • Maria Teresa Ortiz-Ortiz

    (Facultad de Ciencias de la Salud, Escuela de Medicina, Universidad Peruana de Ciencias Aplicadas; Alameda San Marcos Avenue, block 2, Chorrillos. Lima 09, Lima, Peru
    These authors contributed equally to this work.)

  • Bruno Castañeda-Carbajal

    (Facultad de Ciencias de la Salud, Escuela de Medicina, Universidad Peruana de Ciencias Aplicadas; Alameda San Marcos Avenue, block 2, Chorrillos. Lima 09, Lima, Peru
    These authors contributed equally to this work.)

  • German F. Alvarado

    (Facultad de Ciencias de la Salud, Escuela de Medicina, Universidad Peruana de Ciencias Aplicadas; Alameda San Marcos Avenue, block 2, Chorrillos. Lima 09, Lima, Peru
    These authors contributed equally to this work.)

Abstract

We have read and analyzed the article entitled “Prevalence of marijuana use among university students in Bolivia, Colombia, Ecuador and Peru”. We propose some objective points which could enhance the internal validity of the study ( i.e. , we suggest to report participation proportions).

Suggested Citation

  • Maria Claudia Martinez-Novack & Maria Teresa Ortiz-Ortiz & Bruno Castañeda-Carbajal & German F. Alvarado, 2015. "Comments on Hynes et al . Prevalence of Marijuana Use among University Students in Bolivia, Colombia, Ecuador and Peru. Int. J. Environ. Res. Public Health 2015, 12 , 5233–5240," IJERPH, MDPI, vol. 12(9), pages 1-3, September.
    • Handle: RePEc:gam:jijerp:v:12:y:2015:i:9:p:11718-11720:d:55910
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    References listed on IDEAS

    as
    1. Marya Hynes & Maria Demarco & Juan Carlos Araneda & Francisco Cumsille, 2015. "Prevalence of Marijuana Use among University Students in Bolivia, Colombia, Ecuador, and Peru," IJERPH, MDPI, vol. 12(5), pages 1-8, May.
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