function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bejarano, Eduar Elías & Estrada, Luis Gregorio', 4],
    ['Bravo, Freddy & Salazar-Valenzuela, David', 1],
    ['Cordeiro, Danilo Pacheco & Bravo, Freddy', 1],
    ['Curler, Gregory R. & Jacobson, Amanda J.', 8],
    ['Ferreira, André Da Silva & Araújo, Maíra Xavier', 1],
    ['Ivkovic, Marija & Doric, Valentina & Baranov, Viktor', 2],
    ['Jezek, Jan & Chvojka, Pavel & Manko, Peter & Obona, Jozef', 1],
    ['Jezek, Jan & Manko, Peter & Obona, Jozef', 1],
    ['Ježek, Jan', 2],
    ['Ježek, Jan & Hájek, Josef', 3],
    ['Ježek, Jan & Manko, Peter & Oboňa, Jozef', 5],
    ['Ježek, Jan & Wahab, Rodzay Abdul & Ševčík, Jan', 3],
    ['Rossito, Lucas & Pinho, Luiz Carlos', 2],
    ['Tkoč, Michal & Pecharová, Martina & Ježek, Jan', 3],
    ['WAGNER, RÜDIGER & AGNIHOTRI, PRIYA & SINGH, HUKAM', 2],
    ['Other (3)', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=42)',
    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);