CHANGES IN PARASYMPATHETIC CARDIOVASCULAR AUTONOMIC FUNCTIONS DURING THE MENSTRUAL CYCLE IN MEDICAL STUDENTS FROM BIDAR, KARNATAKA: A DESCRIPTIVE CROSS-SECTIONAL STUDY. A-JMRHS. 2026;4(2):2039-2044. doi:10.65605/a-jmrhs.2026.v04.i02.pp2039-2044