http://www.unboundmedicine.com/medline/ebm/research/comfreyUnbound MEDLINE is a service provided by Unbound Medicine, Inc. that includes data and services from the U.S. National Library of Medicine's MEDLINE® and PubMed® databases.en-usUnbound Medicine, Inc.http://www.unboundmedicine.com/medline/ebm/record/19836573/full_citation/Determination_of_pyrrolizidine_alkaloids_in_comfrey_by_liquid_chromatography_electrospray_ionization_mass_spectrometry_Liu F, Wan SY, Jiang Z, et al. 
Determination of pyrrolizidine alkaloids in comfrey by liquid chromatography-electrospray ionization mass spectrometry. [Journal Article]
Talanta 2009 Dec 15; 80(2):916-23.
Abstract | Full Citation | Publisher Full Text | Find Related Articles http://www.unboundmedicine.com/medline/ebm/record/19827020/full_citation/Absence_of_mutagenic_effects_of_a_particular_Symphytum_officinale_L__liquid_extract_in_the_bacterial_reverse_mutation_assay_Benedek B, Ziegler A, Ottersbach P 
Absence of mutagenic effects of a particular Symphytum officinale L. liquid extract in the bacterial reverse mutation assay. [JOURNAL ARTICLE]
Phytother Res 2009 Oct 13.
Abstract | Full Citationhttp://www.unboundmedicine.com/medline/ebm/record/19477483/full_citation/Lead_chelation_to_immobilised_Symphytum_officinale_L___comfrey__root_tannins_Chin L, Leung DW, Harry Taylor H 
Lead chelation to immobilised Symphytum officinale L. (comfrey) root tannins. [JOURNAL ARTICLE]
Chemosphere 2009 May 26.
Abstract | Full Citation | Find Related Articles http://www.unboundmedicine.com/medline/ebm/record/19460762/full_citation/Efficacy_and_safety_of_a_Comfrey_root_extract_ointment_in_the_treatment_of_acute_upper_or_low_back_pain:_results_of_a_double_blind_randomised_placebo_controlled_multi_centre_trial_Giannetti BM, Staiger C, Bulitta M, et al. 
Efficacy and safety of a Comfrey root extract ointment in the treatment of acute upper or low back pain: results of a double-blind, randomised, placebo-controlled, multi-centre trial. [JOURNAL ARTICLE]
Br J Sports Med 2009 May 21.
Abstract | Full Citation | Publisher Full Text | Find Related Articles http://www.unboundmedicine.com/medline/ebm/record/19350428/full_citation/Severe_pulmonary_hypertension_possibly_due_to_pyrrolizidine_alkaloids_in_polyphytotherapy_Györik S, Stricker H 
Severe pulmonary hypertension possibly due to pyrrolizidine alkaloids in polyphytotherapy. [Journal Article]
Swiss Med Wkly 2009 Apr 4; 139(13-14):210-1.
Full Citationhttp://www.unboundmedicine.com/medline/ebm/record/18955295/full_citation/Comfrey__Symphytum_Officinale__L___and_Experimental_Hepatic_Carcinogenesis:_A_Short_term_Carcinogenesis_Model_Study_Gomes MF, de Oliveira Massoco C, Xavier JG, et al. 
Comfrey (Symphytum Officinale. L.) and Experimental Hepatic Carcinogenesis: A Short-term Carcinogenesis Model Study. [JOURNAL ARTICLE]
Evid Based Complement Alternat Med 2007 Dec 26.
Abstract | Full Citation | Find Related Articles http://www.unboundmedicine.com/medline/ebm/record/18839730/full_citation/Marion's_message__Natural_healing_McLean MT 
Marion's message. Natural healing. [Journal Article]
Midwifery Today Int Midwife 2008; (87):9, 64.
Full Citation | Find Related Articles http://www.unboundmedicine.com/medline/ebm/record/18618436/full_citation/Safety_assessment_of_food_and_herbal_products_containing_hepatotoxic_pyrrolizidine_alkaloids:_interlaboratory_consistency_and_the_importance_of_N_oxide_determination_Cao Y, Colegate SM, Edgar JA 
Safety assessment of food and herbal products containing hepatotoxic pyrrolizidine alkaloids: interlaboratory consistency and the importance of N-oxide determination. [JOURNAL ARTICLE]
Phytochem Anal 2008 Jul 10.
Abstract | Full Citation | Find Related Articles http://www.unboundmedicine.com/medline/ebm/record/18422987/full_citation/Influence_of_homeopathic_treatment_with_comfrey_on_bone_density_around_titanium_implants:_a_digital_subtraction_radiography_study_in_rats_Sakakura CE, Neto RS, Bellucci M, et al. 
Influence of homeopathic treatment with comfrey on bone density around titanium implants: a digital subtraction radiography study in rats. [Journal Article, Research Support, Non-U.S. Gov't]
Clin Oral Implants Res 2008 Jun; 19(6):624-8.
Abstract | Full Citation | Publisher Full Text | Find Related Articles http://www.unboundmedicine.com/medline/ebm/record/18398519/full_citation/In_general_practice_'always_expect_the_unexpected'_Mackinnon M 
In general practice, 'always expect the unexpected'. [Journal Article]
Aust Fam Physician 2008 Apr; 37(4):235-6.
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