function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Biswas, Bijan & Roy, Rakhi', 2],
    ['Borges, Paulo A. V. & Gaspar, Clara', 2],
    ['Candek, Klemen & Gregoric, Matjaz & Kostanjsek, Rok', 4],
    ['Crespo, Luis C & Domenech, Marc & Enguidanos, Alba', 2],
    ['Crespo, Luis C. & Boieiro, Mario & Cardoso, Pedro', 2],
    ['Dean, David Allen', 2],
    ['Li, Shuqiang & Wang, Xiaoxiao', 2],
    ['Liu, Keke & Meng, Zeyuan & Xiao, Yonghong & Xu, Xiang', 6],
    ['Marusik, Yuri & Koponen, Seppo & Fritzén, Niclas', 3],
    ['Marusik, Yuri M. & Esyunin, Sergei L. & Tuneva, Tatyana K.', 4],
    ['Oezkuetuek, Recep Sulhi & Marusik, Yuri M. & Elverici, Mert', 1],
    ['Ono, Hirotsugu', 1],
    ['Reboleira, Ana Sofia P. S. & Pérez, Antonio José', 1],
    ['Seropian, Armen & Bulbulashvili, Natalia & Krammer, Hans-Joachim', 1],
    ['Zhang, Zhi-Sheng & Hu, Dong-Sheng & Zhang, Yao-Guang', 5],
    ['Other (2)', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=40)',
    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);