传硕公版书
虎口三关
小儿三岁以下有病，须看男左女右手。虎口三关从第二指侧向内推看，第一节名风关，第二节名气关，第三节名命关。辨其纹色，紫者属热，红者属寒，青者惊风，白者疳病，黑者中恶，黄者脾之困也。若现于风关为轻，气关为重，过于命关，则难治矣。
幼科切要 · 王锡鑫 · Chapter 6 of 45
虎口三关
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