1. CHALLENGES IN IMPLEMENTING HEART RATE VARIABILITY TESTING IN A FAMILY MEDICINE PRACTICE: STRENGTHS, PITFALLS AND CAVEATS. Authors: LEONTIN DAVID, NICOLETA-CORNELIA MIRESCU, FELICIA PETRESCU, MARIA PETRESCU, ȘTEFAN-CLAUDIU MIRESCU.2. COMPUTER SOUND CARD USED AS ANALOG-TO-DIGITAL CONVERTER IN A TEACHING PHYSIOLOGY LABORATORY. Authors: ȘTEFAN-CLAUDIU MIRESCU.3. REVIEW: HEART RATE VARIABILITY: A PRACTICAL REVIEW FOR THE BEGINNER. Authors: CORNELIU TARBA, LEONTIN DAVID, ANDREEA LOREDANA CIOCOIU, ȘTEFAN-CLAUDIU MIRESCU.4. SHORT COMMUNICATION : ACUTE EFFECTS OF ELECTRONIC CIGARETTE SMOKING ON HEART RATE VARIABILITY. Authors: LEONTIN DAVID, CORNELIU TARBA, SERGIU HOLHOȘ, BEATRICE ANDREEA CAITAS, ȘTEFAN-CLAUDIU MIRESCU.5. A COMPUTATIONAL INSIGHT INTO CARDIAC BEAT-TO-BEAT INTERVALS VARIABILITY: FROM NORMAL TO PATHOLOGICAL. Authors: ȘTEFAN-CLAUDIU MIRESCU, FIRUȚA-LILIANA ARDELEAN, OCTAVIAN POPESCU.