function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Barcelos, Luis MD & Rodrigues, Pedro R & Bried, Joel', 10],
    ['Gonza ́ Lez-Acun, Daniel A. & Palma, Ricardo L.', 2],
    ['Johannessen, Lars Erik & Lifjeld, Jan T.', 1],
    ['Lima, Rafael Dantas & Silveira, Luís Fábio', 1],
    ['MLÍKOVSKÝ, JIŘÍ', 1],
    ['Mourer-Chauviré, Cécile & Geraads, Denis', 1],
    ['Somenzari, Marina & Amaral, Priscilla Prudente do', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=17)',
    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);