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Healthline Media, San Francisco, USA
Society of Teachers of Family Medicine, Leawood , USA
Society of Teachers of Family Medicine, Leawood, KS, USA
Book, John Wiley & Sons, Inc., Hoboken, USA, free summaries, paid full-text chapters
RxList Inc., New York, USA
Lab Test Online, American Association for Clinical Chemistry, Washington, USA
Mayo Clinic, Rochester, MN, USA
Edward Burns
MedicineNet, Inc., WebMD LLC, New York, USA
Journal, MEDICAL TRIBUNE CZ, s.r.o., Prague, Czech Republic, in Czech
Strana 7 z 8