function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Arabuli, Lela & Murvanidze, Lali & Faltynkova, Anna', 2],
    ['Baer, J. G.', 2],
    ['Baugh, S. C.', 1],
    ['Belogurov, O. I. & Leonov, V. A.', 1],
    ['Braun, M.', 1],
    ['Heinemann, Ernst', 1],
    ['Hsu, Yin Chi', 1],
    ['Jiang, Chang-fu & Wei, Lan-ying', 1],
    ['Katsurada, Fujiro', 1],
    ['Macko, Jozef K.', 1],
    ['Markowski, Stanislaw', 1],
    ['Morishita, K. & Tsuchimochi, K.', 1],
    ['Oshmarin, P. G.', 1],
    ['Skrjabin, K. I.', 1],
    ['Tanabe, Hiroshi', 1],
    ['Other (2)', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=19)',
    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);