Armour Thyroid: Is it obsolete?

A few examples that should allow you to determine if Armour Thyroid is Obsolete. <br /> <br />How does it work? <br />How is it different? <br /> <br />References: <br />http://www.ncbi.nlm.nih.gov/pubmed/23719846 <br />http://www.ncbi.nlm.nih.gov/pubmed/26402162 <br />http://www.nature.com/nrendo/journal/v12/n2/full/nrendo.2015.205.html <br />http://www.ncbi.nlm.nih.gov/pubmed/21121614 <br />http://www.ncbi.nlm.nih.gov/pubmed/7121261 <br />http://online.liebertpub.com/doi/pdf/10.1089/thy.1998.8.229 <br />http://www.ncbi.nlm.nih.gov/pubmed/23539727