An astonishing amount of information in a very small package. Well indexed, authoratative, diagnostic with a complete index of drugs.
A must have for the practictioner or nurse and informed lay person. A good subsitute for the long standing Merck Manual which it was dificult to do without. And all in your pocket and your phone. A must have for those persons with the need to have technical medical information and diagnostic confirmation.
Flight track about The Merck Manuals - Professional