The investigative panel under Seoul National University (SNU) has delayed to at least Friday a first reporting of interim results of its probe into Hwang Woo-suk's research.

An SNU official cited the lack of collected data as a reason for the postponement Wednesday morning.

Meanwhile, the panel is set to summon MizMedi Hospital CEO Roh Sung-il and Professor Moon Shin-yong of SNU’s College of Medicine for questioning Wednesday afternoon.

Roh will likely be quizzed on how stem cells stored at the hospital were delivered to Hwang and whether he actually supplied Hwang with one-thousand-plus eggs for research as he had claimed.

Moon will be pressed to explain how apparent flaws were made in a thesis published this summer and whether such flaws existed in another thesis presented in 2004.

Meanwhile, Professor Hwang went to his office at SNU’s Veterinary College in Wednesday morning, raising speculations that the panel might cross-examine Roh, Moon, and Hwang at the same time.