a. Harvard University (Cambridge, Massachusetts, USA)
b. Yale University (New Haven, Connecticut, USA)
c. Princeton University (Princeton, New Jersey, USA)
d. Stanford University (Stanford, California, USA)
e. University of Oxford (Oxford, UK)
f. University of Cambridge (Cambridge, UK)
g. University College London (London, UK)
h. University of Toronto (Toronto, Canada)
i. McGill University (Montreal, Canada)
j. The University of Melbourne (Melbourne, Australia)
k. University of Sydney (Sydney, Australia)
l. National University of Singapore (Singapore)
m. University of Tokyo (Tokyo, Japan)
n. Peking University (Beijing, China)
o. Tsinghua University (Beijing, China)
p. Korea University (Seoul, South Korea)
q. Seoul National University (Seoul, South Korea)
r. Universidad Nacional Autónoma de México (Mexico City, Mexico)
s. Universidad de Buenos Aires (Buenos Aires, Argentina)
t. University of São Paulo (São Paulo, Brazil)
u. Pontifical Catholic University of Chile (Santiago, Chile)
v. University of Cape Town (Cape Town, South Africa)
w. University of Stellenbosch (Stellenbosch, South Africa)
x. University of Ghana (Legon, Ghana)
y. University of Nigeria (Nsukka, Nigeria)
z. Makerere University (Kampala, Uganda)