Halaas, Gajiwala, Maffei, Cohen, Chait, Rabinowitz, Lallone, Burley, Friedman: "Weight-reducing effects of the plasma protein encoded by the obese gene." in: Science (New York, N.Y.), Vol. 269, Issue 5223, pp. 543-6, 1995 (PubMed).
Maffei, Halaas, Ravussin, Pratley, Lee, Zhang, Fei, Kim, Lallone, Ranganathan: "Leptin levels in human and rodent: measurement of plasma leptin and ob RNA in obese and weight-reduced subjects." in: Nature medicine, Vol. 1, Issue 11, pp. 1155-61, 1995 (PubMed).
Lönnqvist, Arner, Nordfors, Schalling: "Overexpression of the obese (ob) gene in adipose tissue of human obese subjects." in: Nature medicine, Vol. 1, Issue 9, pp. 950-3, 1995 (PubMed).
Zhang, Proenca, Maffei, Barone, Leopold, Friedman: "Positional cloning of the mouse obese gene and its human homologue." in: Nature, Vol. 372, Issue 6505, pp. 425-32, 1994 (PubMed).