function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Almasi, Maryam & Salmaki, Yasaman & Xiang, Chun-Lei', 2],
    ['Salmaki, Yasaman & Joharchi, Mohammad Reza', 1],
    ['Turdiboev, Obidjon A. & Rouhan, Germinal & Allamurotov, Akmal L.', 1],
    ['Zhao, Yue & Chen, Ya-Ping & Liu, De-Tuan', 1],
    ['Zhao, Yue & Chen, Ya-Ping & Zheng, Hai-Lei & Peng, Hua', 1],
    ['Zhao, Yue & Chi, Jian-Cai & Chen, Ya-Ping & Liang, Cun-Zhu', 2],
    ['Zhao, Yue & Zhao, Fei & Paton, Alan J. & Xiao, Jin-Fei', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=9)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 7, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);