作者单位:Centre for Atomic and Molecular Physics, Manipal University, Manipal, India[1]Dept of Obstetrics and Gynecology, Kasturba Medical College, Manipal University, Manipal, India[2]KMC International Center, Manipal University, Manipal, India[3]21 Udayagiri, Sion Trombay Road, Deonar, Mumbai, India[4]