Mala Arora, Jennifer R. Niebyl and Asha Rijhsinghani WORLD clinics: obstetrics and gynecology: preterm labor xviii, 167p. : ill. Mala Arora, Jennifer R. Niebyl and Asha Rijhsinghani - - Jaypee Brothers Medical Publishers 2012. “it includes references” ISBN: 978-93-5090-175-5