function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Agarwal, V.', 1],
    ['Andrews, J. R. H.', 1],
    ['Arabuli, Lela & Murvanidze, Lali & Faltynkova, Anna', 1],
    ['Baer, J. G.', 1],
    ['Baer, Jean Georges', 1],
    ['Belogurov, O. I. & Leonov, V. A.', 1],
    ['Belogurov, O. I. & Zueva, L. S.', 1],
    ['Bychovskaya-Pavlovskaya, I. E. & Vysotskaja, S. O.', 1],
    ['Bychowskaja-Pavlovskaja, I. E. & Vysotskaja, S. O.', 1],
    ['Eduardo, Salcedo L. & Gaddi, Carmelito B.', 2],
    ['Jaiswal, G. P.', 2],
    ['Mokhehle, C. N. C.', 2],
    ['Skrjabin, K. I. & Evranova, V. G.', 2],
    ['Travassos, L.', 3],
    ['Yamaguti, S.', 2],
    ['Other (12)', 12]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=34)',
    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);