function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Andriashev, A. P.', 5],
    ['Balushkin, A. V.', 1],
    ['Eakin, R. R.', 6],
    ['Eakin, R. R. & Balushkin, A. V.', 1],
    ['Eakin, R. R. & Eastman, J. T.', 1],
    ['Eastman, J. T. & Eakin, R. R.', 1],
    ['Laan, Richard Van Der & Eschmeyer, William N. & Fricke, Ronald', 1],
    ['Lönnberg, A. J. E.', 1],
    ['Norman, J. R.', 1],
    ['Parker, Elyse & Near, Thomas J.', 1],
    ['Shandikov, Gennadiy A. & Eakin, Richard R.', 1],
    ['Tomo, A. P.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=21)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 12, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);