function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Forbicioni, Leonardo & Tormen, Nicola & Curletti, Gianfranco', 3],
    ['Ghahari, Hassan & Volkovitsh, Mark G. & Bellamy, Charles L.', 1],
    ['Tamadera, Yutaka & Yoshitake, Hiraku', 1],
    ['Wei, Zhonghua & Xu, Hongxia & Shi, Aimin', 2],
    ['Xu, Hongxia & Ge, Sinqin & Kubáň, Vítězslav & Yang, Xingke', 2],
    ['Xu, Hongxia & Kubáň, Vítězslav & Volkovitsh, Mark G. & Ge, Siqin', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=11)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 6, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);