@Article{ VILLAVERDE:121-125,

author = { CARMEN VILLAVERDE GUTIERREZ } ,

title = { PLASMA CONCENTRATIONS OF BETA-ENDORPHIN AND ADRENOCORTICOTROPIC HORMONE IN WOMEN WITH AND WITHOUT CHILDBIRTH PREPARATION },

journal = { EUROPEAN JOURNAL OF OBSTETRICS GYNECOLOGY AND REPRODUCTIVE BIOLOGY },

year = { 1997 },

volume = { 73 },

issn = { 0301-2115 },

pages = { 121-125 },

}