Thomas Kohn

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The fetus is supplied from the placenta with estradiol (E2) and progesterone (P) in increasing amounts during gestation. After delivery of a premature infant, placental supply is disrupted, resulting in a rapid decrease in E2 and P. Replacement of these placental hormones may restore intrauterine conditions and may be beneficial for bone mineral accretion,(More)
BACKGROUND There are several methods for harvesting from donor area, including punch graft, multiple bladed knife, or single bladed knife excision followed by excision of an ellipse. Vertical harvesting is excellent for avoiding follicular transections because of complete visualization of the angle of the hair exiting the scalp. Also, the donor area is(More)
Pain during hair restoration surgery and other dermatologic surgery procedures is one of patients' main fears. The authors briefly describe local anesthesia techniques they use in their surgical practice that make these procedures more pleasant for patients. The ability to provide a pain-free experience during hair restoration surgery will increase(More)
BACKGROUND The maximum number of hair grafts that can be safely implanted in 1 cm2 is still debatable. To our knowledge, no previous report has addressed this issue in three dimensions, taking into account the size, the angle of the graft, and the intergraft distance. OBJECTIVES To study the effect of the size and angle of the graft and the intergraft(More)
OBJECTIVE Growth of the uterus and the mammary glands and changes in vaginal cytologic features are known to be estrogen dependent and were evaluated to proof the biologic effectiveness of a postnatal replacement of estradiol and progesterone in extremely premature infants. STUDY DESIGN Thirty female infants with a mean gestational age of 26.4 weeks(More)
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