http://falcon.cc.ukans.edu/~jbrown/penicillin.html
http://www.pbs.org/wgbh/aso/databank/entries/dm28pe.html
http://inst.augie.edu/~jjrobins/aspirin.html
http://www.san-marino.k12.ca.us/~summer1/1997/cc/fleming.html
http://www.nobel.se/laureates/medicine-1945-1-bio.html
http://www.sciences.demon.co.uk/wfleming.htm
http://www.nobel.se/laureates/medicine-1945-2-bio.html
http://www.pbs.org/wgbh/aso/databank/entries/bmchai.html
http://www.uky.edu/~holler/msc/roles/hodgkin.html
http://www.iumsc.indiana.edu/rotate/Submit.cgi/penicillin
http://www.iumsc.indiana.edu/Graphics/xtelplot/xtelplot.htm
http://www.iumsc.indiana.edu/educational/penicill/penicill.htm
http://www.iumsc.indiana.edu/common/common.html
http://www.infomed.org/100drugs/penifram.html
http://www.infomed.org/100drugs/peniind.html
http://www.infomed.org/100drugs/penicont.html
http://www.infomed.org/100drugs/peniadre.html
http://www.infomed.org/100drugs/penirg.html
http://www.infomed.org/100drugs/penilit.html
http://vet.purdue.edu/depts/bms/courses/chmrx/penems.htm
Derivats de la Penicil·lina
http://micro.magnet.fsu.edu/micro/gallery/pharm/antibiotic/antibiotic.html
http://falcon.cc.ukans.edu/~jbrown/antibiotic.html
http://www.bact.wisc.edu/Bact330/lecturebactres
http://www.fda.gov/fdac/features/795_antibio.html
http://www.fda.gov/opacom/catalog/aspirin.html