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Colony-forming efficiency was determined for cells from six conjunctival regions. (A) Photographs of conjunctival colonies stained with Rhodamine B Fluka. A colony was defined as eight or more contiguous cells. (B) Bar chart showing the colony-forming efficiency (percentage ±SEM) achieved with cells from six conjunctival regions. *P < 0.05 compared with superior bulbus and inferior bulbus (n = 9).
