function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Candek, Klemen & Gregoric, Matjaz & Kostanjsek, Rok', 2],
    ['Crespo, Luis C & Domenech, Marc & Enguidanos, Alba', 4],
    ['Crespo, Luis C. & Boieiro, Mario & Cardoso, Pedro', 2],
    ['Dean, David Allen', 3],
    ['Duperre, Nadine & Harms, Danilo', 1],
    ['Forster, Raymond Robert', 1],
    ['Galán-Sánchez, M. Antonio & Alvarez-Padilla, Fernando', 1],
    ['Huang, Gui-Qiang & Zhang, Zhi-Sheng & Liu, Ying-Hong', 7],
    ['Lin, Yejie & Li, Shuqiang & Mo, Haolin & Wang, Xihao', 2],
    ['Rivera-Quiroz, Francisco Andrés & Petcharad, Booppa', 3],
    ['Thaler, K.', 3],
    ['Zhang, Zhi-Sheng & Li, Shuqiang & Pham, Dinh-Sac', 4],
    ['Zhang, Zhi-Sheng & Li, Shuqiang & Zheng, Guo', 5],
    ['Zhang, Zhi-Sheng & Zhang, Yao-Guang', 3],
    ['Zonstein, Sergei & Marusik, Yuri & Omelko, Mikhail', 2],
    ['Other (9)', 9]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=52)',
    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);