function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bezděk, Jan & Lee, Chi-Feng', 7],
    ['Cho, H. - W. & An, S. L.', 3],
    ['Lee, Chi-Feng & Bezdek, Jan', 28],
    ['Medvedev, Lev', 5],
    ['Nie, Rui-E & Zhou, Da-Kang & Xue, Huai-Jun & Yang, Xing-Ke', 13],
    ['Sergeev, M. E.', 1],
    ['Takizawa, Haruo', 1],
    ['Viswajyothi, Keezhpattillam & Clark, Shawn M.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=59)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 8, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);