function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Barták, Miroslav & Preisler, Jiří & Kanavalová, Liliana', 11],
    ['De Carvalho, C. J. B. & Pont, A. C. & Couri, M. S.', 65],
    ['Domínguez, M. Cecilia & Pont, Adrian C.', 7],
    ['Durango, Yesica & Ramírez-Mora, Manuel', 6],
    ['Gomes, Lucas R. P. & Pedraza-Lara, Carlos', 11],
    ['Grisales, Diana & De Carvalho, Claudio J. B.', 25],
    ['Grisales, Diana & Wolff, Marta & De, Claudio J. B.', 24],
    ['Pont, Adrian C.', 19],
    ['Wang, Ming-Fu & Zhang, Dong & Xue, Wan-Qi', 8],
    ['Wang, Ming-Fu & Zhang, Dong & Zheng, Shuang & Zhang, Chun-Tian', 7],
    ['Wang, Ming-fu & Li, Kai & Zhang, Dong', 10],
    ['Wang, Ming-fu & Li, Wei & Zhao, Yu-wan & Wu, Jie & Zhang, Dong', 4],
    ['Wang, Ming-fu & Li, Wei & Zhu, Wei-bing & Zhang, Dong', 18],
    ['Wendt, Lisiane Dilli', 12],
    ['Zhang, Dong & Wang, Jing & Wang, Ming-Fu & Li, Kai', 6],
    ['Other (15)', 27]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=260)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);