Timothy R. Johnson

The Transfer of Drugs and Therapeutics Into Human Breast Milk: An Update on Selected Topics

Hari Cheryl Sachs, Daniel A.C. Frattarelli, Jeffrey L. Galinkin et al. · PEDIATRICS · 2013 · 547 citations

Medicine, Pharmacology, Pharmacotherapy +15

Addressing Score Bias and Differential Item Functioning Due to Individual Differences in Response Style

Daniel M. Bolt, Timothy R. Johnson · Applied Psychological Measurement · 2009 · 161 citations

Education, Behavioral Sciences, Psychology +17

Asymbiotic and symbiotic seed germination of Eulophia alta (Orchidaceae)—preliminary evidence for the symbiotic culture advantage

Timothy R. Johnson, Scott Stewart, Daniela de Angeli Dutra et al. · Plant Cell Tissue and Organ Culture (PCTOC) · 2007 · 121 citations

Life Sciences, Plant Biology, Plant Sciences +15

Asymbiotic seed germination, in vitro seedling development, and greenhouse acclimatization of the threatened terrestrial orchid Bletia purpurea

Daniela de Angeli Dutra, Timothy R. Johnson, Philip J. Kauth et al. · Plant Cell Tissue and Organ Culture (PCTOC) · 2008 · 114 citations

Agriculture, Plant Biology, Plant Sciences +14

When to Run and When to Hide: The Influence of Concealment, Visibility, and Proximity to Refugia on Perceptions of Risk

Meghan J. Camp, Janet L. Rachlow, Bonnie A. Woods et al. · Ethology · 2012 · 102 citations

Life Sciences, Ecology, Zoology +11