function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Broad, Gavin R.', 24],
    ['Eroğlu, F. & Kiraç, A. & Birol, O.', 1],
    ['Gadallah, N. S. & Ahmed, R. S. & Heneidy, A. H. El-', 1],
    ['Khalaim, Andrey I. & Kasparyan, Dmitri R.', 2],
    ['Kolarov, J.', 16],
    ['Reshchikov, Alexey & Alvarado, Mabel', 3],
    ['Riedel & Pénigot & Schwarz & Diller & Johansson & Japoshvili, G.', 8],
    ['Riedel, Matthias', 75],
    ['Riedel, Matthias & Ameri, Ali & Talebi, Ali Asghar', 1],
    ['Verheyde, Fons & Jacobs, JEffrEY & Dekoninck, WOUTEr', 1],
    ['Watanabe, Kyohei & Sheng, Mao-Ling', 3],
    ['Çoruh, Saliha & Kolarov, Janko & Çoruh, Irfan', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=136)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 12, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);