Morphine (English Wikipedia)

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Poeaknapo C, Schmidt J, Brandsch M, Dräger B, Zenk MH (September 2004). "Endogenous formation of morphine in human cells". Proceedings of the National Academy of Sciences of the United States of America. 101 (39): 14091–14096. Bibcode:2004PNAS..10114091P. doi:10.1073/pnas.0405430101. PMC 521124. PMID 15383669. Without doubt, human cells can produce the alkaloid morphine.
Onoyovwe A, Hagel JM, Chen X, Khan MF, Schriemer DC, Facchini PJ (2013). "Morphine biosynthesis in opium poppy involves two cell types: sieve elements and laticifers". The Plant Cell. 25 (10): 4110–4122. Bibcode:2013PlanC..25.4110O. doi:10.1105/tpc.113.115113. PMC 3877807. PMID 24104569.
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books.google.com (Global: 3^rd place; English: 3^rd place)

canada.ca (Global: 1,114^th place; English: 605^th place)

clincalc.com (Global: 5,833^rd place; English: 4,432^nd place)

dea.gov (Global: low place; English: 7,442^nd place)

doi.org (Global: 2^nd place; English: 2^nd place)

dot.gov (Global: 1,620^th place; English: 841^st place)

drugs.com (Global: 529^th place; English: 550^th place)

europa.eu (Global: 62^nd place; English: 100^th place)

fda.gov (Global: 470^th place; English: 329^th place)

federalregister.gov (Global: 2,513^th place; English: 1,292^nd place)

gesetze-im-internet.de (Global: 1,764^th place; English: 5,286^th place)

hathitrust.org (Global: 296^th place; English: 153^rd place)

hdl.handle.net (Global: 66^th place; English: 34^th place)

health.gov.au (Global: low place; English: 9,028^th place)

hrw.org (Global: 601^st place; English: 472^nd place)

legislation.govt.nz (Global: 6,289^th place; English: 3,674^th place)

livestrong.com (Global: low place; English: 9,557^th place)

medicines.org.uk (Global: 4,892^nd place; English: 3,451^st place)

medlineplus.gov (Global: 1,521^st place; English: 1,017^th place)

medscape.com (Global: 1,078^th place; English: 916^th place)

merriam-webster.com (Global: 425^th place; English: 373^rd place)

newscientist.com (Global: 1,041^st place; English: 901^st place)

nih.gov (Global: 5^th place; English: 5^th place)

northwestern.edu (Global: 2,347^th place; English: 1,308^th place)

nytimes.com (Global: 7^th place; English: 7^th place)

ojp.gov (Global: 6,739^th place; English: 3,639^th place)

psu.edu (Global: 299^th place; English: 159^th place)

rochester.edu (Global: 2,816^th place; English: 1,888^th place)

science.org (Global: 1,007^th place; English: 665^th place)

sciencedaily.com (Global: 1,390^th place; English: 1,286^th place)

the-scientist.com (Global: 7,825^th place; English: 5,797^th place)

umich.edu (Global: 429^th place; English: 307^th place)

unodc.org (Global: 2,954^th place; English: 2,575^th place)

usdoj.gov (Global: 4,271^st place; English: 2,616^th place)

web.archive.org (Global: 1^st place; English: 1^st place)

who.int (Global: 213^th place; English: 314^th place)

worldcat.org (Global: 4^th place; English: 4^th place)