function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bharathidasan, Veeraiyan & Sarathy, Palanivel Partha', 2],
    ['Capa, María & Faroni-Perez, Larisse & Hutchings, Pat', 2],
    ['Capa, María & Hutchings, Pat & Peart, Rachael', 1],
    ['Chávez-López, Yessica', 5],
    ['Faulwetter, Sarah & Simboura, Nomiki & Katsiaras, Nikolaos', 6],
    ['Hutchings, Pat & Capa, María & Peart, Rachael', 4],
    ['McIntosh, William C.', 2],
    ['Mikac, Barbara', 1],
    ['Nishi, Eijiroh & Bailey-Brock, Julie Helen', 4],
    ['Nishi, Eijiroh & Kato, Tetsuya & Hayashi, Isao', 1],
    ['Nishi, Eijiroh & Matsuo, Kanako & Capa, Maria & Tomioka, Shinri', 1],
    ['Razmi Shah, Raz Shauqeena Batrisyea & Ibrahim, Yusof Shuaib', 1],
    ['Salazar-Vallejo, Sergio I. & Carrera-Parra, Luis F.', 1],
    ['Santos, André Souza Dos & Brasil, Ana Claudia Dos Santos', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=35)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 14, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);