عِلم اجتماع السكان

Compiled with the advice of clinical experts and continually updated to reflect the latest evidence from credible sources worldwide, the new edition of the British National Formulary 77 (BNF) provides up-to-date guidance on prescribing, dispensing, and administering medicines

Now in its Tenth Edition and in continuous publication since 1959, Apley & Solomon's System of Orthopaedics and Trauma is one of the world's leading textbooks of orthopaedic surgery