They were among 19 people killed as a result of strikes across rebel-held Idlib province yesterday, the Syrian Observatory for Human Rights said.
An AFP correspondent in the village of Deir Sharqi, where one of the hospitals was hit, saw extensive damage and wards buried in rubble.
It was the third time in less than a week that medical facilities in the province, controlled by rebels and jihadist groups, had been hit in air strikes.
"Apparently Russian aircraft... Carried out four successive raids at dawn on a hospital on the outskirts" of Deir Sharqi, it said.
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The AFP correspondent saw at least one destroyed incubator, rooms and corridors filled with rubble, and dusty or damaged beds and equipment.
In one room, a wall had collapsed on a medicine shelf and in another, medical supplies were strewn across the room.
Later in the day, four medical staff from a dispensary in Maarzita, in southern Idlib province, were also killed in what were likely Russian strikes, the Observatory said.
On Saturday, an air raid on another hospital in Idlib had wounded five people, the Observatory said, but it could not say whether the raid was Syrian or Russian.
Another hospital was hit Tuesday in northwestern Idlib, putting it out of service, Abdel Rahman said.
The Britain-based Observatory relies on a network of sources inside Syria and says it determines whose planes carry out raids according to type, location, flight patterns and munitions used.
Idlib is regularly bombed by the air forces of Syria and its Russian ally.
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