Differential Diagnosis list generation is one of the best functions
    that handhelds have added to modern clinical practice.

    These tools can be divided into a) single symptom look up where
    we get a list of differential diagnoses for a given clinical feature
    and b) multiple symptoms ddx generators where input a number
    of features and we get the list for those symptoms.
Review
AAG
N/A
Blog
$150/year (of the whole essentials bundle)
Pda4peds Categories
AAG = At A Glance page of specs, pros, and cons
Pediatric Differential Diagnosis
    Thompson Rheumatology - DDx chapter (USBMIS)
Review
AAG
N/A
Blog
$28 (for the whole ebook)
    Single symptom ddx programs
    Multiple symptoms ddx programs
----------
The Pediatric PDA Blog
    Other general programs useful for DDx
Review
AAG
N/A
Blog
$349.95 (for whole Dynamed, Direct)