title: High contraceptive failure rate of rhythm method: possible involvement of pheromones.
authors.forename: Raju Suresh
authors.initials: RS
authors.lastname: Kumar
authors.forename: Sareesh Naduvil
authors.initials: SN
authors.lastname: Narayanan
authors.forename: Jaijesh
authors.initials: J
authors.lastname: Paval
mesh_terms: D003267:Contraception; D005260:Female; D006801:Humans; D011247:Pregnancy; D012724:Sex Attractants
chemical_list: D012724:Sex Attractants