function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Omelko, Mikhail M. & Marusik, Yuri M. & Lyle, Robin', 6],
    ['Ott, Ricardo & Rodrigues, Everton Nei Lopes', 3],
    ['Tanikawa, Akio', 2],
    ['Trilikauskas, L. A.', 1],
    ['Zhang, Jianshuang & Zhang, Qi & Long, Feiyang & Yu, Hao', 3],
    ['Álvarez-Padilla, Fernando & Hormiga, Gustavo', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=16)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 6, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);