function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bromley-Schnur, Heather J.', 1],
    ['Chen, Yu-Hui & Chen, Xiao-Min & Wu, Cheng-Chen & Wang, An-Tai', 1],
    ['Gammoudi, Mehrez & Garbouj, Myriam & Egger, Bernhard', 2],
    ['Harrath, Abdul Halim & Sluys, Ronald & Aldahmash, Waleed', 1],
    ['Harrath, Abdul Halim & Sluys, Ronald & Merzoug, Djemoi', 2],
    ['Kawakatsu, Masaharu', 1],
    ['Liu, Yi & Song, Xiao-Yu & Sun, Zhong-Yin & Li, Wei-Xuan', 1],
    ['Nurse, Frances R.', 1],
    ['Sluys, Ronald & Solà, Eduard & Gritzalis, Konstantinos', 5],
    ['Song, Xiao-Yu & Li, Wei-Xuan & Sluys, Ronald & Huang, Shu-Xin', 1],
    ['Stocchino, G. A. & Corso, G. & Manconi, R. & Casu, S. & Pala, M.', 1],
    ['Stocchino, Giacinta Angela', 6],
    ['Stocchino, Giacinta Angela & Sluys, Ronald & Manconi, Renata', 2],
    ['Wang, Lei & Chen, Jin-zi & Dong, Zi-mei & Chen, Guang-wen', 2],
    ['Wang, Lei & Dong, Zi-mei & Chen, Guang-wen & Sluys, Ronald', 2],
    ['Other (2)', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=31)',
    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);