The Danish Twin Registry is the oldest national twin register in the world, initiated in 1954 by ascertainment of twins born from 1870 to 1910. During a number of studies birth cohorts have been added to the register, and by the recent addition of birth cohorts from 1931 to 1952 the Registry now comprizes 127 birth cohorts of twins from 1870 to 1996, with a total of more than 65,000 twin pairs ...

PURPOSE Demonstrate radiological findings of 127 angiomyolipomas (AMLs) and propose a classification based on the radiological evidence of fat. MATERIALS AND METHODS The imaging findings of 85 consecutive patients with AMLs: isolated (n = 73), multiple without tuberous sclerosis (TS) (n = 4) and multiple with TS (n = 8), were retrospectively reviewed. Eighteen AMLs (14%) presented with hemorr...

Dear Editor, We read the article by Dr. Prando with interest (1). He evaluated the radiological findings of 127 angiomyolipomas (AML) and defined 4 categories depending on the fat content of the tumors. The author defined pattern-I as small (< 1.5 cm), intrarenal, homogenous and predominantly fatty lesions and proposed that these lesions tend to become more heterogenous (with increasing amounts...

Central-transition (127)I solid-state nuclear magnetic resonance (SSNMR) spectra are presented for several anhydrous group 2 metal iodides (MgI(2), CaI(2), SrI(2), and BaI(2)), hydrates (BaI(2)·2H(2)O and SrI(2)·6H(2)O), and CdI(2) (4H polytype). Variable offset cumulative spectrum data acquisition coupled with echo pulse sequences and an 'ultrahigh' applied field of 21.1 T were usually suitabl...

5. Amend § 401.420 as follows: a. In paragraph (a), remove the text ‘‘$127’’ and add, in its place, the text ‘‘$122’’; and remove the text ‘‘$1,989’’ and add, in its place, the text ‘‘$1,910’’; b. In paragraph (b), remove the text ‘‘$127’’ and add, in its place, the text ‘‘$122’’; and remove the text ‘‘$1,989’’ and add, in its place, the text ‘‘$1,910’’; and c. In paragraph (c)(1), remove the t...