In this study, P4B was investigated as a label for the secondary cell walls of radiata pine tracheids. Although the data show some significant differences to Anderson et al. (2010), P4B was confirmed as an excellent stain for cellulose in pine tracheids, notably for the S1 and S3 layers.
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Requests for prior authorization can be made through CareCore | MedSolutions.â¢ Phone: 855-727-7444â¢ Fax: 888-693-3210â¢ Online: myportal.medsolutions.com Is prior authorization required for emergencydepartment situations? No. Patients seen in the emergency department are exempt from prior authorization.