function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Arabuli, Lela & Murvanidze, Lali & Faltynkova, Anna', 1],
    ['Dronen, Norman O. & Blend, Charles K.', 5],
    ['Dronen, Norman O. & Blend, Charles K. & Gardner, Scott L.', 2],
    ['Hechinger, Ryan F.', 2],
    ['Looss, A.', 1],
    ['Lopes, Daniela A. & Mainenti, Adriana & Knoff, Marcelo', 1],
    ['Nicoll, W.', 1],
    ['Pinto, Hudson Alves & Melo, Alan Lane De', 2],
    ['Sasaki, Mizuki & Miura, Osamu & Nakao, Minoru', 1],
    ['Shakarbaev, U. A. & Akramova, F. D. & Azimov, D. A.', 1],
    ['Yamaguti, S.', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=19)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 11, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);