function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Annereaux, Ralph F.', 1],
    ['Arabuli, Lela & Murvanidze, Lali & Faltynkova, Anna', 4],
    ['Besprozvannykh, Vladimir V. & Ermolenko, Alexey V.', 1],
    ['Biguet, J. & Deblock, S. & Capron, A.', 1],
    ['Chen, P. - h. & Tang, Z. - z.', 1],
    ['Chernyshenko, A.', 1],
    ['Fischthal, Jacob H.', 1],
    ['Gupta, S. P. & Agrawal, V.', 1],
    ['Gupta, S. P. & Verma, S. L.', 1],
    ['Hasnain, M. & Sahay, U.', 1],
    ['Ivanitskii, S. V.', 1],
    ['Kulakovskaja, O. P.', 1],
    ['Markowski, Stanislaw', 1],
    ['Wang, P. - q. & Sun, Yu-lan & Zhao, Yu-ru & Zhang, Wen-huan', 3],
    ['Yamaguti, S.', 2],
    ['Other (12)', 12]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=33)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);