function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Averyanov, Leonid V. & Nguyen, Van Canh & Tanaka, Noriyuki', 5],
    ['Averyanov, Leonid V. & Tanaka, Noriyuki & Nguyen, Khang Sinh', 1],
    ['Borah, Dipankar & Taram, Momang & Tanaka, Noriyuki', 2],
    ['Kroupsky, Ivan A. & Lyskov, Dmitry F. & Nguyen, Khang Sinh', 1],
    ['Nguyen, Khang Sinh & Tanaka, Noriyuki & Averyanov, Leonid V.', 1],
    ['Vislobokov, Nikolay A. & Romanov, Mikhail S. & Тanaka, Noriyuki', 1],
    ['Ya. Vislobokov & Romanov, Mikhail S. & Nguyen, Khang Sinh', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=12)',
    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);