OB Calc Pro is designed to quickly calculate a variety of medical test date windows based on 4 different methods used to estimate the Due Date of a pregnant patient.  The app has up to 10 custom test names and dates . 

The 4 methods are LMP, EDC, Sonogram and CRL.   

CRL Reference link

OB Calc Pro:      Designed by a doctor, for doctors!

Designed by a teacher, for teachers

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