Differential diagnosis

Does anybody have a good differential diagnosis book that they recommend? I currently have Differential diagnosis for the advanced practice nurse and I like it but I wish it included more in the differentials.

For example, for "eye redness" the differentials included are bacterial conjunctivitis, blepharitis, viral conjunctivitis and allergic conjunctivitis...there are a lot more that could be considered, especially serious must-not-miss diagnoses like anterior uveitis or acute angle closure glaucoma, etc. I just feel like this book is pretty basic.

I use an Ipad app -- Differential Diagnosaurus. Also have a Ferri that I pull out when needed