Charak Samhita
इत्युक्तं त्रिविधोदर्कं रक्तं मार्गविशेषतः। एभ्यस्तु खलु हेतुभ्यः किञ्चित्साध्यं न सिध्यति ॥२१॥
॥ Factors affecting prognosis॥ Some curable diseases do not get treated successfully (and lead to incurability) because of following factors: 1. Not following proper treatment protocol
english translation
ityuktaM trividhodarkaM raktaM mArgavizeSataH। ebhyastu khalu hetubhyaH kiJcitsAdhyaM na sidhyati ॥21॥
hk transliteration by Sanscript