- Hellin's law
- Hellin-Zeleny law one in about 89 pregnancies results in the birth of twins; one in 89 Ч 89, or 7921, of triplets; one in 89 Ч 89 Ч 89, or 704,969, of quadruplets.
Medical dictionary. 2011.
Hellin's law
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Hellin's law — Hel·lin s law (helґinz) [Dyonizy Hellin, Polish pathologist, 1867–1935] see under law … Medical dictionary
law — 1. A principle or rule. 2. A statement of fact detailing a sequence or relation of phenomena that is invariable under given conditions. SEE ALSO: principle, rule, theorem. [A.S. lagu] Alexander l. states that a jerky nystagmus becomes worse when… … Medical dictionary
Hellin — Dyonizy (Dionys), Polish pathologist, 1867–1935. See H. law … Medical dictionary
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Multiple birth — Quadruplet , quintuplet , etc. redirect here. For the musical use of the terms, see tuplet. Triplet brothers at graduation. Identical triplets are extremely rare, something that occurs only once in every 500,000 births. A multiple birth occurs… … Wikipedia
89 (number) — 89 (eighty nine) is the natural number following 88 and preceding 90. ← 88 90 → 89 ← 80 … Wikipedia
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