function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bolotov, Ivan N. & Eliseeva, Tatyana A. & Kondakov, Alexander V.', 1],
    ['El-Shimy, Nasser A.', 1],
    ['Hussein, M. A. & El-Shimy, Nasser A.', 1],
    ['Kennel, J.', 1],
    ['Klass, Anna L. & Kondakov, Alexander V. & Vikhrev, Ilya V.', 1],
    ['Moore, John Percy', 2],
    ['Nakano, Takafumi', 4],
    ['Nakano, Takafumi & Meyer-Rochow, Victor Benno', 1],
    ['Nakano, Takafumi & Nguyen, Son Truong', 1],
    ['Nesemann, Hasko & Sharma, Gopal', 1],
    ['Nesemann, Hasko & Sharma, Gopal & Sinha, Ravindra K.', 1],
    ['WESTERGREN, STEPHANIE & SIDDALL, MARK E.', 2],
    ['Westergren, Stephanie & Siddall, Mark E.', 1],
    ['Yang, Tong', 2],
    ['Yang, Tong & Wang, Debin & Zhang, Yongpu', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=21)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 15, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);