Publications by authors named "Douglas Calder"

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Young adult retail purchases of cannabis, product category preferences and sales trends in California 2018-21: Differences compared with older adults.
Cornelia 'Connie' Pechmann, Douglas Calder, David Timberlake, Joshua Rhee, Alisa Padon

Addiction· October 2024

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Understanding Hesitation to Use Nicotine Replacement Therapy: A Content Analysis of Posts in Online Tobacco-Cessation Support Groups.
Connor Phillips, Cornelia Pechmann, Douglas Calder, Judith J Prochaska

Am J Health Promot· January 2023

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Facebook Recruitment Using Zip Codes to Improve Diversity in Health Research: Longitudinal Observational Study.
Cornelia Pechmann, Connor Phillips, Douglas Calder, Judith J Prochaska

J Med Internet Res· June 2020

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The Use of Web-Based Support Groups Versus Usual Quit-Smoking Care for Men and Women Aged 21-59 Years: Protocol for a Randomized Controlled Trial.
Cornelia Ann Pechmann, Douglas Calder, Connor Phillips, Kevin Delucchi, Judith J Prochaska

JMIR Res Protoc· January 2020

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