function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Animalesto, Gloria & Dewi, Kartika & Apriyanti, Yuni', 8],
    ['Cielocha, Joanna J. & Jensen, Kirsten', 1],
    ['Linton, E.', 1],
    ['Mojica, Kendra R. & Jensen, Kirsten & Caira, Janine N.', 8],
    ['Mutti, Leonardo D. & Ivanov, Verónica A.', 1],
    ['Quadros, Alex L.', 2],
    ['Roohi Aminjan, Atabak & Malek, Masoumeh', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=23)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 7, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);