Subject
- Periodicals2,062,885
- Electronic journals1,079,461
- Medicine -- Periodicals552,317
- Medicine435,058
- 610403,055
- Chemistry -- Periodicals293,551
- Electronic books180,147
- 540.5174,351
- 540162,566
- 610.5127,871
- Materials science -- Periodicals126,753
- Neurology -- Periodicals124,021
- Environmental sciences -- Periodicals119,190
- 620.11115,974
- Materials -- Periodicals106,871
- Cardiology -- Periodicals100,983
- Earth sciences -- Periodicals97,556
- Psychiatry -- Periodicals93,513
- Physics -- Congresses90,047
- 616.887,738